diff --git a/demodata.sql b/demodata.sql
index 580f5e9..4c5f47a 100644
--- a/demodata.sql
+++ b/demodata.sql
@@ -43,7 +43,7 @@ INSERT INTO user_books(created_at, user_id, book_id, read, rating) VALUES ('NOW'
 INSERT INTO books(created_at, title, author, added_by_id, cover_id) VALUES ('NOW', 'Les dieux ont soif','Anatole France', (SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM static_files WHERE name = 'lesdieuxontsoif.jpg'));
 INSERT INTO user_books(created_at, user_id, book_id, read, rating) VALUES ('NOW',(SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM books WHERE title = 'Les dieux ont soif'), true,7);
 INSERT INTO books(created_at, title, author, added_by_id, cover_id) VALUES ('NOW', 'Rigodon','Louis-Ferdinand Céline', (SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM static_files WHERE name = 'rigodon.jpg'));
-INSERT INTO user_books(created_at, user_id, book_id, read, rating) VALUES ('NOW',(SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM books WHERE title = 'Rigodon'),true, 10);
+INSERT INTO user_books(created_at, user_id, book_id, read, rating) VALUES ('NOW',(SELECT id FROM users WHERE name = 'demo2'),(SELECT id FROM books WHERE title = 'Rigodon'),true, 10);
 INSERT INTO books(created_at, title, author, added_by_id, cover_id) VALUES ('NOW', 'Un barrage contre le Pacifique','Marguerite Duras', (SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM static_files WHERE name = 'Un_barrage_contre_le_Pacifique.jpg'));
 INSERT INTO user_books(created_at, user_id, book_id, read, rating) VALUES ('NOW',(SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM books WHERE title = 'Un barrage contre le Pacifique'), true,7);
 INSERT INTO books(created_at, title, author, added_by_id, cover_id) VALUES ('NOW', 'Salammbô','Flaubert Gustave', (SELECT id FROM users WHERE name = 'demo'),(SELECT id FROM static_files WHERE name = 'salammbo.jpg'));
diff --git a/front/src/BigIcon.vue b/front/src/BigIcon.vue
index 56c95c4..301c381 100644
--- a/front/src/BigIcon.vue
+++ b/front/src/BigIcon.vue
@@ -34,7 +34,6 @@
 .bigiconandlegend:hover {
   transform: scale(1.03);
   transition: ease-in-out 0.02s;
-  background-color: bulma-primary;
   cursor: pointer;
 }
 
diff --git a/front/src/BookForm.vue b/front/src/BookForm.vue
index c66b607..3952770 100644
--- a/front/src/BookForm.vue
+++ b/front/src/BookForm.vue
@@ -1,10 +1,12 @@
 <script setup>
 
   import { ref, computed } from 'vue'
-  import { getBook, getImagePathOrDefault, putReadBook, putWantReadBook, putRateBook } from './api.js'
+  import { getBook, getImagePathOrDefault, putReadBook, putWantReadBook, putRateBook,
+  putStartReadDate, putStartReadDateUnset } from './api.js'
   import { onBeforeRouteUpdate } from 'vue-router'
   import { VRating } from 'vuetify/components/VRating';
   import BigIcon from './BigIcon.vue';
+  import StartReadWidget from './StartReadWidget.vue';
 
   const props = defineProps({
   id: String
@@ -14,6 +16,7 @@
   let error = ref(null);
   getBook(data, error, props.id);
   const imagePathOrDefault = computed(() => getImagePathOrDefault(data.value.coverPath));
+
   onBeforeRouteUpdate(async (to, from) => {
     getBook(data, error, to.params.id);
   })
@@ -40,6 +43,21 @@
     putWantReadBook(props.id, {wantread: data.value.wantread});
   }
 
+  function onStartReadIconClick() {
+    if (data.value.startReadDate == null) {
+      data.value.startReadDate = new Date().toISOString().slice(0, 10);
+      putStartReadDate(props.id, data.value.startReadDate);
+    } else {
+      data.value.startReadDate = null;
+      putStartReadDateUnset(props.id);
+    }
+  }
+
+  function onStartReadDateChange(d) {
+    data.value.startReadDate = d;
+    putStartReadDate(props.id, data.value.startReadDate);
+  }
+
 </script>
 
 <template>
@@ -72,9 +90,11 @@
                  :legend="$t('bookform.wantread')"
                  :isSet="data.wantread"
                  @click="onWantReadIconClick"/>
-        <BigIcon icon="BIconBook"
+        <StartReadWidget
                  :legend="$t('bookform.startread')"
-                 :isSet="false"/>
+                 :startReadDate="data.startReadDate"
+                 @onDateChange="onStartReadDateChange"
+                 @onIconClick="onStartReadIconClick"/>
         <BigIcon icon="BIconCheckCircle"
                  :legend="$t('bookform.read')"
                  :isSet="data.read"
diff --git a/front/src/StartReadWidget.vue b/front/src/StartReadWidget.vue
new file mode 100644
index 0000000..f51abd2
--- /dev/null
+++ b/front/src/StartReadWidget.vue
@@ -0,0 +1,75 @@
+<script setup>
+  import { ref } from 'vue'
+  import BigIcon from './BigIcon.vue';
+
+  const props = defineProps({
+  legend: String,
+  startReadDate: String
+});
+  defineEmits(['onIconClick', 'onDateChange'])
+
+  const today = new Date().toISOString().slice(0, 10);
+
+  function computeParentClasses() {
+    if (props.startReadDate != null) {
+      return "startdatewidget has-text-dark has-background-text"
+    } else {
+      return "startdatewidget"
+    }
+  }
+
+</script>
+
+<template>
+  <div :class="computeParentClasses()">
+    <BigIcon icon="BIconBook"
+             :legend="props.legend"
+             :isSet="props.startReadDate != null"
+             @click="$emit('onIconClick')"/>
+    <div v-if="props.startReadDate != null" class="inputdate">
+      <div class="ontopofinput">
+        <label class="datelabel" for="startread">
+          {{$t('startreadwidget.started')}}
+        </label>
+        <input class="datepicker has-background-dark has-text-light"
+               id="startread"
+               type="date"
+               @change="(e) => $emit('onDateChange', e.target.value)"
+               :value="props.startReadDate"
+               :max="today"/>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+
+.inputdate {
+  display: flex;
+  justify-content:center;
+  align-items:center;
+  padding: 20px;
+}
+.startdatewidget {
+  display: flex;
+  width: 500px;
+  border-radius: 0 30px 30px 0;
+}
+.ontopofinput {
+  display: block;
+}
+
+.datelabel {
+  display: flex;
+  justify-content:center;
+  align-items:center;
+  font-size: 26px;
+  border: none;
+  padding-bottom: 15px;
+}
+
+.datepicker {
+  font-size: 26px;
+  border-radius: 5px;
+}
+</style>
diff --git a/front/src/api.js b/front/src/api.js
index cbfb20e..fd2cd49 100644
--- a/front/src/api.js
+++ b/front/src/api.js
@@ -53,6 +53,14 @@ export async function putReadBook(bookId, payload) {
   return genericPayloadCall('/book/' + bookId + "/read", payload, 'PUT')
 }
 
+export async function putStartReadDateUnset(bookId) {
+  return genericPayloadCall('/book/' + bookId + "/startread", {startDate: "null"}, 'PUT')
+}
+
+export async function putStartReadDate(bookId, startdate) {
+  return genericPayloadCall('/book/' + bookId + "/startread", {startDate: startdate}, 'PUT')
+}
+
 export async function putWantReadBook(bookId, payload) {
   return genericPayloadCall('/book/' + bookId + "/wantread", payload, 'PUT')
 }
diff --git a/front/src/locales/en.json b/front/src/locales/en.json
index 159f9c3..c67d1de 100644
--- a/front/src/locales/en.json
+++ b/front/src/locales/en.json
@@ -53,5 +53,8 @@
     "next":"Next",
     "goto":"Goto page {pageNumber}",
     "page":"Page {pageNumber}"
+  },
+  "startreadwidget" :{
+    "started": "Started at :"
   }
 }
diff --git a/front/src/locales/fr.json b/front/src/locales/fr.json
index e964800..c6c3363 100644
--- a/front/src/locales/fr.json
+++ b/front/src/locales/fr.json
@@ -53,5 +53,8 @@
     "next":"Suivant",
     "goto":"Aller à la page {pageNumber}",
     "page":"Page {pageNumber}"
+  },
+  "startreadwidget" :{
+    "started": "Commencé le :"
   }
 }
diff --git a/internal/apitest/get_book_test.go b/internal/apitest/get_book_test.go
index 85660c5..f243b61 100644
--- a/internal/apitest/get_book_test.go
+++ b/internal/apitest/get_book_test.go
@@ -12,19 +12,20 @@ import (
 )
 
 type fetchedBook struct {
-	Title    string `json:"title" binding:"required,max=300"`
-	Author   string `json:"author" binding:"max=100"`
-	Summary  string `json:"summary"`
-	Rating   int    `json:"rating"`
-	Read     bool   `json:"read"`
-	WantRead bool   `json:"wantread"`
+	Title         string `json:"title" binding:"required,max=300"`
+	Author        string `json:"author" binding:"max=100"`
+	Summary       string `json:"summary"`
+	Rating        int    `json:"rating"`
+	Read          bool   `json:"read"`
+	WantRead      bool   `json:"wantread"`
+	StartReadDate string `json:"startReadDate"`
 }
 
 func TestGetBook_Ok(t *testing.T) {
-	book := testGetBook(t, "5", http.StatusOK)
+	book := testGetBook(t, "3", http.StatusOK)
 	assert.Equal(t,
 		fetchedBook{
-			Title:  "Rigodon",
+			Title:  "D'un château l'autre",
 			Author: "Louis-Ferdinand Céline",
 			Rating: 10,
 			Read:   true,
diff --git a/internal/apitest/get_count_user_book_test.go b/internal/apitest/get_count_user_book_test.go
index 95dc707..06a6e0c 100644
--- a/internal/apitest/get_count_user_book_test.go
+++ b/internal/apitest/get_count_user_book_test.go
@@ -31,7 +31,7 @@ func TestGetReadBooksCountHandler_Demo(t *testing.T) {
 	if err != nil {
 		t.Error(err)
 	}
-	assert.Equal(t, 23, c.Count)
+	assert.Equal(t, 22, c.Count)
 }
 
 func TestGetWantReadBooksCountHandler_Demo(t *testing.T) {
diff --git a/internal/apitest/get_read_user_book_test.go b/internal/apitest/get_read_user_book_test.go
index adea3ab..e92783b 100644
--- a/internal/apitest/get_read_user_book_test.go
+++ b/internal/apitest/get_read_user_book_test.go
@@ -14,7 +14,7 @@ func TestGetReadBooksHandler_Demo(t *testing.T) {
 
 	token := testutils.ConnectDemoUser(router)
 	books := testGetReadBooksHandler(t, router, token, 200, "", "")
-	assert.Equal(t, 23, len(books))
+	assert.Equal(t, 22, len(books))
 }
 
 func TestGetReadBooksHandler_DemoNoLimit(t *testing.T) {
@@ -22,7 +22,7 @@ func TestGetReadBooksHandler_DemoNoLimit(t *testing.T) {
 
 	token := testutils.ConnectDemoUser(router)
 	books := testGetReadBooksHandler(t, router, token, 200, "100", "")
-	assert.Equal(t, 23, len(books))
+	assert.Equal(t, 22, len(books))
 }
 
 func TestGetReadBooksHandler_DemoLowerLimit(t *testing.T) {
@@ -38,7 +38,7 @@ func TestGetReadBooksHandler_DemoOffset(t *testing.T) {
 
 	token := testutils.ConnectDemoUser(router)
 	books := testGetReadBooksHandler(t, router, token, 200, "20", "10")
-	assert.Equal(t, 13, len(books))
+	assert.Equal(t, 12, len(books))
 }
 
 func TestGetReadBooksHandler_Demo2(t *testing.T) {
@@ -46,7 +46,7 @@ func TestGetReadBooksHandler_Demo2(t *testing.T) {
 
 	token := testutils.ConnectDemo2User(router)
 	books := testGetReadBooksHandler(t, router, token, 200, "", "")
-	assert.Equal(t, 2, len(books))
+	assert.Equal(t, 3, len(books))
 }
 
 func TestGetReadBooksHandler_CheckOneBook(t *testing.T) {
diff --git a/internal/apitest/put_userbook_startread_test.go b/internal/apitest/put_userbook_startread_test.go
new file mode 100644
index 0000000..d241b42
--- /dev/null
+++ b/internal/apitest/put_userbook_startread_test.go
@@ -0,0 +1,53 @@
+package apitest
+
+import (
+	"net/http"
+	"testing"
+
+	"git.artlef.fr/PersonalLibraryManager/internal/testutils"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPutStartReadUserBooks_NoDate(t *testing.T) {
+	payload :=
+		`{
+	  "date": "2025-11-19"
+	}`
+	bookId := "6"
+	testPutStartReadUserBooks(t, payload, bookId, http.StatusBadRequest)
+}
+
+func TestPutStartReadUserBooks_WrongDateFormat(t *testing.T) {
+	payload :=
+		`{
+	  "startDate": "19/11/2025"
+	}`
+	bookId := "6"
+	testPutStartReadUserBooks(t, payload, bookId, http.StatusInternalServerError)
+}
+
+func TestPutStartReadUserBooks_NewReadOk(t *testing.T) {
+	payload :=
+		`{
+	  "startDate": "2025-11-19"
+	}`
+	bookId := "6"
+	testPutStartReadUserBooks(t, payload, bookId, http.StatusOK)
+	book := testGetBook(t, bookId, http.StatusOK)
+	assert.Equal(t, "2025-11-19", book.StartReadDate)
+}
+
+func TestPutStartReadUserBooks_Unset(t *testing.T) {
+	payload :=
+		`{
+	  "startDate": "null"
+	}`
+	bookId := "6"
+	testPutStartReadUserBooks(t, payload, bookId, http.StatusOK)
+	book := testGetBook(t, bookId, http.StatusOK)
+	assert.Equal(t, "", book.StartReadDate)
+}
+
+func testPutStartReadUserBooks(t *testing.T, payload string, bookId string, expectedCode int) {
+	testutils.TestBookPutCallWithDemoPayload(t, payload, bookId, expectedCode, "/book/"+bookId+"/startread")
+}
diff --git a/internal/model/userbook.go b/internal/model/userbook.go
index 6604712..09b3e83 100644
--- a/internal/model/userbook.go
+++ b/internal/model/userbook.go
@@ -1,14 +1,19 @@
 package model
 
-import "gorm.io/gorm"
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
 
 // describes the relationship between a user and a book.
 type UserBook struct {
 	gorm.Model
-	UserID   uint
-	BookID   uint
-	Book     Book
-	Rating   int
-	Read     bool
-	WantRead bool
+	UserID        uint
+	BookID        uint
+	Book          Book
+	Rating        int
+	Read          bool
+	WantRead      bool
+	StartReadDate *time.Time
 }
diff --git a/internal/query/query.go b/internal/query/query.go
index d7822e7..cf8521f 100644
--- a/internal/query/query.go
+++ b/internal/query/query.go
@@ -9,19 +9,20 @@ import (
 )
 
 type BookGet struct {
-	Title     string `json:"title" binding:"required,max=300"`
-	Author    string `json:"author" binding:"max=100"`
-	Summary   string `json:"summary"`
-	Rating    int    `json:"rating"`
-	Read      bool   `json:"read"`
-	WantRead  bool   `json:"wantread"`
-	CoverPath string `json:"coverPath"`
+	Title         string `json:"title" binding:"required,max=300"`
+	Author        string `json:"author" binding:"max=100"`
+	Summary       string `json:"summary"`
+	Rating        int    `json:"rating"`
+	Read          bool   `json:"read"`
+	WantRead      bool   `json:"wantread"`
+	StartReadDate string `json:"startReadDate"`
+	CoverPath     string `json:"coverPath"`
 }
 
 func FetchBookGet(db *gorm.DB, userId uint, bookId uint64) (BookGet, error) {
 	var book BookGet
 	query := db.Model(&model.Book{})
-	query = query.Select("books.title, books.author, books.summary, user_books.rating, user_books.read, user_books.want_read, " + selectStaticFilesPath())
+	query = query.Select("books.title, books.author, books.summary, user_books.rating, user_books.read, user_books.want_read, user_books.start_read_date, " + selectStaticFilesPath())
 	query = query.Joins("left join user_books on (user_books.book_id = books.id and user_books.user_id = ?)", userId)
 	query = query.Joins("left join static_files on (static_files.id = books.cover_id)")
 	query = query.Where("books.id = ?", bookId)
diff --git a/internal/routes/bookget.go b/internal/routes/bookget.go
index cda15f7..7f63d00 100644
--- a/internal/routes/bookget.go
+++ b/internal/routes/bookget.go
@@ -3,6 +3,7 @@ package routes
 import (
 	"net/http"
 	"strconv"
+	"time"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
@@ -32,5 +33,22 @@ func GetBookHandler(ac appcontext.AppContext) {
 		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
 		return
 	}
+	err = fixBookGetDateFields(&book)
+	if err != nil {
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+		return
+	}
 	ac.C.JSON(http.StatusOK, book)
 }
+
+func fixBookGetDateFields(book *query.BookGet) error {
+	if book.StartReadDate == "" {
+		return nil
+	}
+	startDate, err := time.Parse(time.RFC3339, book.StartReadDate)
+	if err != nil {
+		return err
+	}
+	book.StartReadDate = startDate.Format(time.DateOnly)
+	return nil
+}
diff --git a/internal/routes/userbookputupdate.go b/internal/routes/userbookputupdate.go
index 1f88da6..8a8d9a7 100644
--- a/internal/routes/userbookputupdate.go
+++ b/internal/routes/userbookputupdate.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"net/http"
 	"strconv"
+	"time"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
@@ -63,6 +64,42 @@ func PutWantReadUserBookHandler(ac appcontext.AppContext) {
 	ac.C.String(http.StatusOK, "Success")
 }
 
+func PutStartReadUserBookHandler(ac appcontext.AppContext) {
+	data, err := retrieveDataFromContext(ac)
+	if err != nil {
+		return
+	}
+	bookId := data.BookId
+	user := data.User
+
+	var startDateToParse userbookPutStartRead
+	err = ac.C.ShouldBindJSON(&startDateToParse)
+	if err != nil {
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+		return
+	}
+	userbook, err := fetchOrCreateUserBook(ac, bookId, &user)
+	if err != nil {
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+		return
+	}
+
+	//string equal to "null" to unset value
+	if startDateToParse.StartDate == "null" {
+		userbook.StartReadDate = nil
+	} else {
+		startDate, err := time.Parse(time.DateOnly, startDateToParse.StartDate)
+		if err != nil {
+			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+			return
+		}
+		userbook.StartReadDate = &startDate
+	}
+
+	ac.Db.Save(&userbook)
+	ac.C.String(http.StatusOK, "Success")
+}
+
 func PutRateUserBookHandler(ac appcontext.AppContext) {
 	data, err := retrieveDataFromContext(ac)
 	if err != nil {
@@ -104,6 +141,10 @@ type userbookPutRating struct {
 	Rating int `json:"rating" binding:"min=0,max=10"`
 }
 
+type userbookPutStartRead struct {
+	StartDate string `json:"startDate" binding:"required"`
+}
+
 type apiCallData struct {
 	BookId uint
 	User   model.User
diff --git a/internal/setup/setup.go b/internal/setup/setup.go
index 77ef2e2..0961b10 100644
--- a/internal/setup/setup.go
+++ b/internal/setup/setup.go
@@ -51,6 +51,9 @@ func Setup(config *config.Config) *gin.Engine {
 	r.PUT("/book/:id/wantread", func(c *gin.Context) {
 		routes.PutWantReadUserBookHandler(appcontext.AppContext{C: c, Db: db, I18n: bundle, Config: config})
 	})
+	r.PUT("/book/:id/startread", func(c *gin.Context) {
+		routes.PutStartReadUserBookHandler(appcontext.AppContext{C: c, Db: db, I18n: bundle, Config: config})
+	})
 	r.PUT("/book/:id/rate", func(c *gin.Context) {
 		routes.PutRateUserBookHandler(appcontext.AppContext{C: c, Db: db, I18n: bundle, Config: config})
 	})