diff --git a/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/AuthorAdapter.kt b/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/AuthorAdapter.kt
new file mode 100644
index 00000000..0dbff519
--- /dev/null
+++ b/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/AuthorAdapter.kt
@@ -0,0 +1,15 @@
+package com.intelligentbackpack.desktopdata.adapter
+
+import com.intelligentbackpack.desktopdata.db.entities.Author as AuthorDB
+import com.intelligentbackpack.desktopdomain.entities.Author as AuthorDomain
+
+/**
+ * Adapter for author
+ */
+internal object AuthorAdapter {
+
+    /**
+     * Convert from domain to DB
+     */
+    fun AuthorDB.fromDBToDomain(): AuthorDomain = this.name
+}
diff --git a/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/BookAdapter.kt b/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/BookAdapter.kt
new file mode 100644
index 00000000..f2a325b8
--- /dev/null
+++ b/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/BookAdapter.kt
@@ -0,0 +1,44 @@
+package com.intelligentbackpack.desktopdata.adapter
+
+import book.communication.Book as BookRemote
+import com.intelligentbackpack.desktopdata.adapter.AuthorAdapter.fromDBToDomain
+import com.intelligentbackpack.desktopdata.db.entities.Book as BookDB
+import com.intelligentbackpack.desktopdata.db.relations.BookWithAuthors
+import com.intelligentbackpack.desktopdomain.entities.Book as BookDomain
+
+/**
+ * Adapter for book
+ */
+internal object BookAdapter {
+
+    /**
+     * Convert from DB to domain
+     */
+    fun BookWithAuthors.fromDBToDomain(): BookDomain {
+        return BookDomain.build {
+            isbn = this@fromDBToDomain.book.isbn
+            title = this@fromDBToDomain.book.title
+            authors = this@fromDBToDomain.authors.map { it.fromDBToDomain() }.toSet()
+        }
+    }
+
+    /**
+     * Convert from domain to DB
+     */
+    fun BookDomain.fromDomainToDB(): BookDB =
+        BookDB(
+            isbn = this.isbn,
+            title = this.title
+        )
+
+    /**
+     * Convert from remote to domain
+     */
+    fun BookRemote.fromRemoteToDomain(): BookDomain {
+        return BookDomain.build {
+            isbn = this@fromRemoteToDomain.isbn
+            title = this@fromRemoteToDomain.titolo
+            authors = setOf(this@fromRemoteToDomain.autore)
+        }
+    }
+}
diff --git a/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/SchoolSupplyAdapter.kt b/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/SchoolSupplyAdapter.kt
new file mode 100644
index 00000000..4f59d514
--- /dev/null
+++ b/desktopData/src/main/kotlin/com/intelligentbackpack/desktopdata/adapter/SchoolSupplyAdapter.kt
@@ -0,0 +1,39 @@
+package com.intelligentbackpack.desktopdata.adapter
+
+import com.intelligentbackpack.desktopdata.adapter.AuthorAdapter.fromDBToDomain
+import com.intelligentbackpack.desktopdata.db.entities.SchoolSupply as SchoolSupplyDB
+import com.intelligentbackpack.desktopdata.db.relations.BookCopyWithAuthors
+import com.intelligentbackpack.desktopdomain.entities.Book
+import com.intelligentbackpack.desktopdomain.entities.BookCopy
+import com.intelligentbackpack.desktopdomain.entities.BookCopy as BookCopyDomain
+
+/**
+ * Adapter for school supply
+ */
+internal object SchoolSupplyAdapter {
+
+    /**
+     * Convert from DB Book copy to domain Book copy
+     */
+    fun BookCopyWithAuthors.fromDBToDomain(): BookCopyDomain {
+        return BookCopyDomain.build {
+            this.rfidCode = this@fromDBToDomain.bookCopy.rfid
+            this.book = Book.build {
+                isbn = this@fromDBToDomain.bookCopy.isbn
+                title = this@fromDBToDomain.bookCopy.title
+                authors = this@fromDBToDomain.authors.map { it.fromDBToDomain() }.toSet()
+            }
+        }
+    }
+
+    /**
+     * Convert from domain Book copy to DB Book copy
+     */
+    fun BookCopy.fromDomainToDB(type: Int, inBackpack: Boolean = false): SchoolSupplyDB =
+        SchoolSupplyDB(
+            rfid = this@fromDomainToDB.rfidCode,
+            isbn = this@fromDomainToDB.book.isbn,
+            type = type,
+            inBackpack = inBackpack
+        )
+}