diff --git a/internal/dto/in.go b/internal/dto/in.go
index 651ffa7..ab37a73 100644
--- a/internal/dto/in.go
+++ b/internal/dto/in.go
@@ -1,5 +1,36 @@
 package dto
 
+type AuthorGet struct {
+	Name        string `json:"name" binding:"required,max=100"`
+	Description string `json:"description"`
+}
+
 type BookSearchGetParam struct {
 	Lang string `form:"lang" binding:"max=5"`
 }
+
+type BookPostCreate struct {
+	Title   string `json:"title" binding:"required,max=300"`
+	Author  string `json:"author" binding:"max=100"`
+	CoverID uint   `json:"coverId"`
+}
+
+type BookPostImport struct {
+	InventaireID string `json:"inventaireid" binding:"required,max=50"`
+	Lang         string `json:"lang" binding:"required,max=5"`
+}
+
+type FileInfoPost struct {
+	FileID   uint   `json:"fileId"`
+	FilePath string `json:"filepath"`
+}
+
+type UserLogin struct {
+	Username string `json:"username" binding:"required,min=2,max=20"`
+	Password string `json:"password" binding:"required,min=6,max=100"`
+}
+
+type UserSignup struct {
+	Username string `json:"username" binding:"required,min=2,max=20"`
+	Password string `json:"password" binding:"required,min=6,max=100"`
+}
diff --git a/internal/dto/out.go b/internal/dto/out.go
index ed81739..86c96cd 100644
--- a/internal/dto/out.go
+++ b/internal/dto/out.go
@@ -1,5 +1,30 @@
 package dto
 
+type BookGet struct {
+	Title         string `json:"title" binding:"required,max=300"`
+	Author        string `json:"author" binding:"max=100"`
+	ISBN          string `json:"isbn"`
+	InventaireId  string `json:"inventaireid"`
+	OpenLibraryId string `json:"openlibraryid"`
+	Summary       string `json:"summary"`
+	Rating        int    `json:"rating"`
+	Read          bool   `json:"read"`
+	WantRead      bool   `json:"wantread"`
+	StartReadDate string `json:"startReadDate"`
+	EndReadDate   string `json:"endReadDate"`
+	CoverPath     string `json:"coverPath"`
+}
+
+type BookUserGet struct {
+	ID        uint   `json:"id"`
+	Title     string `json:"title" binding:"required,max=300"`
+	Author    string `json:"author" binding:"max=100"`
+	Rating    int    `json:"rating" binding:"min=0,max=10"`
+	Read      bool   `json:"read" binding:"boolean"`
+	WantRead  bool   `json:"wantread" binding:"boolean"`
+	CoverPath string `json:"coverPath"`
+}
+
 type BookSearchGet struct {
 	Count int64               `json:"count"`
 	Books []BookSearchGetBook `json:"books"`
diff --git a/internal/query/query.go b/internal/query/query.go
index ba57cd9..a7dda92 100644
--- a/internal/query/query.go
+++ b/internal/query/query.go
@@ -1,28 +1,14 @@
 package query
 
 import (
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/fileutils"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"gorm.io/gorm"
 )
 
-type BookGet struct {
-	Title         string `json:"title" binding:"required,max=300"`
-	Author        string `json:"author" binding:"max=100"`
-	ISBN          string `json:"isbn"`
-	InventaireId  string `json:"inventaireid"`
-	OpenLibraryId string `json:"openlibraryid"`
-	Summary       string `json:"summary"`
-	Rating        int    `json:"rating"`
-	Read          bool   `json:"read"`
-	WantRead      bool   `json:"wantread"`
-	StartReadDate string `json:"startReadDate"`
-	EndReadDate   string `json:"endReadDate"`
-	CoverPath     string `json:"coverPath"`
-}
-
-func FetchBookGet(db *gorm.DB, userId uint, bookId uint64) (BookGet, error) {
-	var book BookGet
+func FetchBookGet(db *gorm.DB, userId uint, bookId uint64) (dto.BookGet, error) {
+	var book dto.BookGet
 	query := db.Model(&model.Book{})
 	selectQueryString := "books.title, authors.name as author, books.isbn, books.inventaire_id, books.open_library_id, books.summary, " +
 		"user_books.rating, user_books.read, user_books.want_read, " +
@@ -38,18 +24,8 @@ func FetchBookGet(db *gorm.DB, userId uint, bookId uint64) (BookGet, error) {
 	return book, res.Error
 }
 
-type BookUserGet struct {
-	ID        uint   `json:"id"`
-	Title     string `json:"title" binding:"required,max=300"`
-	Author    string `json:"author" binding:"max=100"`
-	Rating    int    `json:"rating" binding:"min=0,max=10"`
-	Read      bool   `json:"read" binding:"boolean"`
-	WantRead  bool   `json:"wantread" binding:"boolean"`
-	CoverPath string `json:"coverPath"`
-}
-
-func FetchReadUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]BookUserGet, error) {
-	var books []BookUserGet
+func FetchReadUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]dto.BookUserGet, error) {
+	var books []dto.BookUserGet
 	query := fetchReadUserBookQuery(db, userId)
 	query = query.Limit(limit)
 	query = query.Offset(offset)
@@ -64,8 +40,8 @@ func FetchReadUserBookCount(db *gorm.DB, userId uint) (int64, error) {
 	return count, res.Error
 }
 
-func FetchReadingUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]BookUserGet, error) {
-	var books []BookUserGet
+func FetchReadingUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]dto.BookUserGet, error) {
+	var books []dto.BookUserGet
 	query := fetchReadingUserBookQuery(db, userId)
 	query = query.Limit(limit)
 	query = query.Offset(offset)
@@ -91,8 +67,8 @@ func fetchReadingUserBookQuery(db *gorm.DB, userId uint) *gorm.DB {
 	return query
 }
 
-func FetchWantReadUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]BookUserGet, error) {
-	var books []BookUserGet
+func FetchWantReadUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]dto.BookUserGet, error) {
+	var books []dto.BookUserGet
 
 	query := fetchWantReadUserBookQuery(db, userId)
 	query = query.Limit(limit)
diff --git a/internal/routes/authorget.go b/internal/routes/authorget.go
index eaba881..0a16323 100644
--- a/internal/routes/authorget.go
+++ b/internal/routes/authorget.go
@@ -5,16 +5,12 @@ import (
 	"strconv"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
 	"github.com/gin-gonic/gin"
 )
 
-type AuthorGet struct {
-	Name        string `json:"name" binding:"required,max=100"`
-	Description string `json:"description"`
-}
-
 func GetAuthorHandler(ac appcontext.AppContext) {
 	authorId, err := strconv.ParseUint(ac.C.Param("id"), 10, 64)
 	if err != nil {
@@ -32,7 +28,7 @@ func GetAuthorHandler(ac appcontext.AppContext) {
 		myvalidator.ReturnErrorsAsJsonResponse(&ac, res.Error)
 		return
 	}
-	ac.C.JSON(http.StatusOK, AuthorGet{
+	ac.C.JSON(http.StatusOK, dto.AuthorGet{
 		Name:        author.Name,
 		Description: author.Description})
 }
diff --git a/internal/routes/bookpostcreate.go b/internal/routes/bookpostcreate.go
index 65bd777..1db304a 100644
--- a/internal/routes/bookpostcreate.go
+++ b/internal/routes/bookpostcreate.go
@@ -4,19 +4,14 @@ import (
 	"errors"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
 	"gorm.io/gorm"
 )
 
-type bookPostCreate struct {
-	Title   string `json:"title" binding:"required,max=300"`
-	Author  string `json:"author" binding:"max=100"`
-	CoverID uint   `json:"coverId"`
-}
-
 func PostBookHandler(ac appcontext.AppContext) {
-	var book bookPostCreate
+	var book dto.BookPostCreate
 	err := ac.C.ShouldBindJSON(&book)
 	if err != nil {
 		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
@@ -41,7 +36,7 @@ func PostBookHandler(ac appcontext.AppContext) {
 	ac.C.String(200, "Success")
 }
 
-func saveBookToDb(ac appcontext.AppContext, b bookPostCreate, user *model.User) error {
+func saveBookToDb(ac appcontext.AppContext, b dto.BookPostCreate, user *model.User) error {
 	author, err := fetchOrCreateAuthor(ac, b.Author)
 	if err != nil {
 		return err
diff --git a/internal/routes/bookpostimport.go b/internal/routes/bookpostimport.go
index 5f25fba..90bcdd6 100644
--- a/internal/routes/bookpostimport.go
+++ b/internal/routes/bookpostimport.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/inventaire"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
@@ -12,13 +13,8 @@ import (
 	"gorm.io/gorm"
 )
 
-type bookPostImport struct {
-	InventaireID string `json:"inventaireid" binding:"required,max=50"`
-	Lang         string `json:"lang" binding:"required,max=5"`
-}
-
 func PostImportBookHandler(ac appcontext.AppContext) {
-	var request bookPostImport
+	var request dto.BookPostImport
 	err := ac.C.ShouldBindJSON(&request)
 	if err != nil {
 		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
diff --git a/internal/routes/bookputupdate.go b/internal/routes/bookputupdate.go
deleted file mode 100644
index 9ebd52e..0000000
--- a/internal/routes/bookputupdate.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package routes
-
-import "git.artlef.fr/PersonalLibraryManager/internal/appcontext"
-
-type bookPutUpdate struct {
-	Title   string `json:"title" binding:"required,max=300"`
-	Author  string `json:"author" binding:"max=100"`
-	CoverID uint   `json:"coverId"`
-}
-
-func PutBookHandler(ac appcontext.AppContext) {
-
-}
diff --git a/internal/routes/uploadbookcover.go b/internal/routes/uploadbookcover.go
index 89e41c1..0e4bfd9 100644
--- a/internal/routes/uploadbookcover.go
+++ b/internal/routes/uploadbookcover.go
@@ -4,16 +4,12 @@ import (
 	"net/http"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/fileutils"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
 )
 
-type fileInfoPost struct {
-	FileID   uint   `json:"fileId"`
-	FilePath string `json:"filepath"`
-}
-
 func PostUploadBookCoverHandler(ac appcontext.AppContext) {
 	file, err := ac.C.FormFile("file")
 	if err != nil {
@@ -28,8 +24,8 @@ func PostUploadBookCoverHandler(ac appcontext.AppContext) {
 	ac.C.JSON(http.StatusOK, staticFileDbToWs(&staticFile))
 }
 
-func staticFileDbToWs(f *model.StaticFile) fileInfoPost {
-	return fileInfoPost{
+func staticFileDbToWs(f *model.StaticFile) dto.FileInfoPost {
+	return dto.FileInfoPost{
 		FileID:   f.ID,
 		FilePath: fileutils.GetWsLinkPrefix() + f.Path,
 	}
diff --git a/internal/routes/userlogin.go b/internal/routes/userlogin.go
index 6d49c55..4c724a8 100644
--- a/internal/routes/userlogin.go
+++ b/internal/routes/userlogin.go
@@ -5,6 +5,7 @@ import (
 	"net/http"
 
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/i18nresource"
 	"git.artlef.fr/PersonalLibraryManager/internal/jwtauth"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
@@ -14,13 +15,8 @@ import (
 	"gorm.io/gorm"
 )
 
-type userLogin struct {
-	Username string `json:"username" binding:"required,min=2,max=20"`
-	Password string `json:"password" binding:"required,min=6,max=100"`
-}
-
 func PostLoginHandler(ac appcontext.AppContext) {
-	var user userLogin
+	var user dto.UserLogin
 	err := ac.C.ShouldBindJSON(&user)
 	if err != nil {
 		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
diff --git a/internal/routes/usersignup.go b/internal/routes/usersignup.go
index cb55c4a..d5fb115 100644
--- a/internal/routes/usersignup.go
+++ b/internal/routes/usersignup.go
@@ -2,18 +2,14 @@ package routes
 
 import (
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
+	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
 	"golang.org/x/crypto/bcrypt"
 )
 
-type userSignup struct {
-	Username string `json:"username" binding:"required,min=2,max=20"`
-	Password string `json:"password" binding:"required,min=6,max=100"`
-}
-
 func PostSignupHandler(ac appcontext.AppContext) {
-	var user userSignup
+	var user dto.UserSignup
 	err := ac.C.ShouldBindJSON(&user)
 	if err != nil {
 		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
@@ -32,7 +28,7 @@ func PostSignupHandler(ac appcontext.AppContext) {
 	ac.C.String(200, "Success")
 }
 
-func userWsToDb(u userSignup) (model.User, error) {
+func userWsToDb(u dto.UserSignup) (model.User, error) {
 	user := model.User{
 		Name:     u.Username,
 		Password: "",