diff --git a/worblehat/services/seed_test_data.py b/worblehat/services/seed_test_data.py
index 04388c9..021816e 100644
--- a/worblehat/services/seed_test_data.py
+++ b/worblehat/services/seed_test_data.py
@@ -1,4 +1,5 @@
 import csv
+from datetime import datetime, timedelta
 from pathlib import Path
 
 from sqlalchemy.orm import Session
@@ -6,7 +7,11 @@ from sqlalchemy.orm import Session
 from worblehat.flaskapp.database import db
 
 from ..models import (
+    Author,
     Bookcase,
+    BookcaseItem,
+    BookcaseItemBorrowing,
+    BookcaseItemBorrowingQueue,
     BookcaseShelf,
     Language,
     MediaType,
@@ -117,6 +122,100 @@ def seed_data(sql_session: Session = db.session):
         BookcaseShelf(row=0, column=4, bookcase=bookcases[4], description="Religion"),
     ]
 
+    authors = [
+        Author(name="Donald E. Knuth"),
+        Author(name="J.K. Rowling"),
+        Author(name="J.R.R. Tolkien"),
+        Author(name="George R.R. Martin"),
+        Author(name="Stephen King"),
+        Author(name="Agatha Christie"),
+    ]
+
+    book1 = BookcaseItem(
+        name = "The Art of Computer Programming",
+        isbn = "9780201896831",
+    )
+    book1.authors.add(authors[0])
+    book1.media_type = media_types[0]
+    book1.shelf = shelfs[59]
+
+    book2 = BookcaseItem(
+        name = "Harry Potter and the Philosopher's Stone",
+        isbn = "9780747532743",
+    )
+    book2.authors.add(authors[1])
+    book2.media_type = media_types[0]
+    book2.shelf = shelfs[-1]
+
+    book_owned_by_other_user = BookcaseItem(
+        name = "Book owned by other user",
+        isbn = "9780747532744",
+    )
+
+    book_owned_by_other_user.owner = "other_user"
+    book_owned_by_other_user.authors.add(authors[4])
+    book_owned_by_other_user.media_type = media_types[0]
+    book_owned_by_other_user.shelf = shelfs[-2]
+
+    borrowed_book_more_available = BookcaseItem(
+        name = "Borrowed book with more available",
+        isbn = "9780747532745",
+    )
+    borrowed_book_more_available.authors.add(authors[5])
+    borrowed_book_more_available.media_type = media_types[0]
+    borrowed_book_more_available.shelf = shelfs[-3]
+    borrowed_book_more_available.amount = 2
+
+    borrowed_book_no_more_available = BookcaseItem(
+        name = "Borrowed book with no more available",
+        isbn = "9780747532746",
+    )
+    borrowed_book_no_more_available.authors.add(authors[5])
+    borrowed_book_no_more_available.media_type = media_types[0]
+    borrowed_book_no_more_available.shelf = shelfs[-3]
+
+    borrowed_book_people_in_queue = BookcaseItem(
+        name = "Borrowed book with people in queue",
+        isbn = "9780747532747",
+    )
+    borrowed_book_people_in_queue.authors.add(authors[5])
+    borrowed_book_people_in_queue.media_type = media_types[0]
+    borrowed_book_people_in_queue.shelf = shelfs[-3]
+
+    borrowed_book_by_slabbedask = BookcaseItem(
+        name = "Borrowed book by slabbedask",
+        isbn = "9780747532748",
+    )
+    borrowed_book_by_slabbedask.authors.add(authors[5])
+    borrowed_book_by_slabbedask.media_type = media_types[0]
+    borrowed_book_by_slabbedask.shelf = shelfs[-3]
+
+    books = [
+        book1,
+        book2,
+        book_owned_by_other_user,
+        borrowed_book_more_available,
+        borrowed_book_no_more_available,
+        borrowed_book_people_in_queue,
+    ]
+
+    slabbedask_borrowing = BookcaseItemBorrowing(
+        username="slabbedask",
+        item=borrowed_book_more_available,
+    )
+    slabbedask_borrowing.end_time = datetime.now() - timedelta(days=1)
+
+    borrowings = [
+        BookcaseItemBorrowing(username="user", item=borrowed_book_more_available),
+        BookcaseItemBorrowing(username="user", item=borrowed_book_no_more_available),
+        BookcaseItemBorrowing(username="user", item=borrowed_book_people_in_queue),
+        slabbedask_borrowing,
+    ]
+
+    queue = [
+        BookcaseItemBorrowingQueue(username="user", item=borrowed_book_people_in_queue),
+    ]
+
     with open(Path(__file__).parent.parent.parent / 'data' / 'iso639_1.csv') as f:
       reader = csv.reader(f)
       languages = [Language(name, code) for (code, name) in reader]
@@ -125,5 +224,9 @@ def seed_data(sql_session: Session = db.session):
     sql_session.add_all(bookcases)
     sql_session.add_all(shelfs)
     sql_session.add_all(languages)
+    sql_session.add_all(authors)
+    sql_session.add_all(books)
+    sql_session.add_all(borrowings)
+    sql_session.add_all(queue)
     sql_session.commit()
     print("Added test media types, bookcases and shelfs.")
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