diff --git a/tests/scrobbles_tests/conftest.py b/tests/scrobbles_tests/conftest.py
index 97e4744..c84e355 100644
--- a/tests/scrobbles_tests/conftest.py
+++ b/tests/scrobbles_tests/conftest.py
@@ -23,7 +23,7 @@ def boardgame_scrobble():
         log={
             "players": [
                 {"person_id": first.id, "win": True, "score": 30, "color": "Blue"},
-                {"person_id": second.id, "win": False, "score": 28, "color": "Red"}
+                {"person_id": second.id, "win": False, "score": 28, "color": "Red"},
             ],
         },
     )
@@ -58,9 +58,7 @@ class MopidyRequest:
             "artist": kwargs.get("artist", self.artist),
             "album": kwargs.get("album", self.album),
             "track_number": int(kwargs.get("track_number", self.track_number)),
-            "run_time_ticks": int(
-                kwargs.get("run_time_ticks", self.run_time_ticks)
-            ),
+            "run_time_ticks": int(kwargs.get("run_time_ticks", self.run_time_ticks)),
             "run_time": int(kwargs.get("run_time", self.run_time)),
             "playback_time_ticks": int(
                 kwargs.get("playback_time_ticks", self.playback_time_ticks)
@@ -103,9 +101,7 @@ def mopidy_track():
 @pytest.fixture
 def mopidy_track_diff_album_request_data(**kwargs):
     mb_album_id = "0c56c457-afe1-4679-baab-759ba8dd2a58"
-    return MopidyRequest(
-        album="Gold", musicbrainz_album_id=mb_album_id
-    ).request_json
+    return MopidyRequest(album="Gold", musicbrainz_album_id=mb_album_id).request_json
 
 
 @pytest.fixture
@@ -115,6 +111,7 @@ def mopidy_podcast_request_data():
         mopidy_uri=mopidy_uri, artist="NPR", album="Up First"
     ).request_json
 
+
 @pytest.fixture
 def mopidy_podcast_https_request_data():
     mopidy_uri = "podcast+https://feeds.npr.org/510318/podcast.xml#85b9c4c4-ae09-43d9-8853-31ccf43f68e6"
@@ -122,6 +119,7 @@ def mopidy_podcast_https_request_data():
         mopidy_uri=mopidy_uri, artist="NPR", album="Up First"
     ).request_json
 
+
 class JellyfinTrackRequest:
     name = "Emotion"
     artist = "Carly Rae Jepsen"
@@ -136,6 +134,7 @@ class JellyfinTrackRequest:
     musicbrainz_album_id = "03b864cd-7761-314c-a892-05a89ddff00d"
     musicbrainz_artist_id = "95f5b748-d370-47fe-85bd-0af2dc450bc0"
     status = "resumed"
+    client_name = "Jellyfin"
 
     def __init__(self, **kwargs):
         self.request_data = {
@@ -159,6 +158,7 @@ class JellyfinTrackRequest:
                 "musicbrainz_artist_id", self.musicbrainz_artist_id
             ),
             "Status": kwargs.get("status", self.status),
+            "ClientName": kwargs.get("client_name", self.client_name),
         }
 
     def __eq__(self, other):
diff --git a/tests/scrobbles_tests/test_views.py b/tests/scrobbles_tests/test_views.py
index d95143c..b15bd7d 100644
--- a/tests/scrobbles_tests/test_views.py
+++ b/tests/scrobbles_tests/test_views.py
@@ -1,11 +1,11 @@
 from datetime import datetime, timedelta
-from unittest.mock import patch
+from unittest.mock import patch, MagicMock
 from django.utils import timezone
 
 import pytest
 import time_machine
 from django.urls import reverse
-from music.models import Track
+from music.models import Track, Artist, Album
 from podcasts.models import PodcastEpisode
 from scrobbles.models import Scrobble
 
@@ -18,6 +18,14 @@ def test_get_not_allowed_from_mopidy(client, valid_auth_token):
     assert response.status_code == 405
 
 
+@pytest.mark.django_db
+def test_get_not_allowed_from_jellyfin(client, valid_auth_token):
+    url = reverse("scrobbles:jellyfin-webhook")
+    headers = {"Authorization": f"Token {valid_auth_token}"}
+    response = client.get(url, headers=headers)
+    assert response.status_code == 405
+
+
 @pytest.mark.django_db
 def test_bad_mopidy_request_data(client, valid_auth_token):
     url = reverse("scrobbles:mopidy-webhook")
@@ -30,6 +38,172 @@ def test_bad_mopidy_request_data(client, valid_auth_token):
     )
 
 
+@pytest.mark.django_db
+def test_bad_jellyfin_request_data(client, valid_auth_token):
+    url = reverse("scrobbles:jellyfin-webhook")
+    headers = {"Authorization": f"Token {valid_auth_token}"}
+    response = client.post(url, headers)
+    assert response.status_code == 400
+    assert (
+        response.data["detail"]
+        == "JSON parse error - Expecting value: line 1 column 1 (char 0)"
+    )
+
+
+@pytest.mark.django_db
+@patch("music.models.Artist.find_or_create")
+@patch("music.models.Track.find_or_create")
+def test_create_scrobble_from_mopidy_track_webhook(
+    mock_track_fc,
+    mock_artist_fc,
+    client,
+    valid_auth_token,
+    mopidy_track,
+):
+    mock_artist = MagicMock(spec=Artist)
+    mock_artist.id = 1
+    mock_artist_fc.return_value = mock_artist
+
+    mock_track = MagicMock(spec=Track)
+    mock_track.id = 1
+    mock_track.scrobble_for_user.return_value = Scrobble(
+        id=1, track_id=1, user_id=1, in_progress=True
+    )
+    mock_track_fc.return_value = mock_track
+
+    url = reverse("scrobbles:mopidy-webhook")
+    headers = {"Authorization": f"Token {valid_auth_token}"}
+    response = client.post(
+        url,
+        mopidy_track.request_data,
+        content_type="application/json",
+        headers=headers,
+    )
+    assert response.status_code == 200
+    assert response.data == {"scrobble_id": 1}
+    mock_track.scrobble_for_user.assert_called_once()
+
+
+@pytest.mark.django_db
+@patch("music.models.Artist.find_or_create")
+@patch("music.models.Track.find_or_create")
+def test_create_scrobble_from_jellyfin_track_webhook(
+    mock_track_fc,
+    mock_artist_fc,
+    client,
+    valid_auth_token,
+    jellyfin_track,
+):
+    mock_artist = MagicMock(spec=Artist)
+    mock_artist.id = 1
+    mock_artist_fc.return_value = mock_artist
+
+    mock_track = MagicMock(spec=Track)
+    mock_track.id = 1
+    mock_track.scrobble_for_user.return_value = Scrobble(
+        id=1, track_id=1, user_id=1, in_progress=True
+    )
+    mock_track_fc.return_value = mock_track
+
+    url = reverse("scrobbles:jellyfin-webhook")
+    headers = {"Authorization": f"Token {valid_auth_token}"}
+
+    with time_machine.travel(datetime(2024, 1, 14, 12, 00, 1)):
+        jellyfin_track.request_data["UtcTimestamp"] = timezone.now().strftime(
+            "%Y-%m-%d %H:%M:%S"
+        )
+        response = client.post(
+            url,
+            jellyfin_track.request_json,
+            content_type="application/json",
+            headers=headers,
+        )
+        assert response.status_code == 200
+        assert response.data == {"scrobble_id": 1}
+        mock_track.scrobble_for_user.assert_called_once()
+
+
+@pytest.mark.django_db
+@patch("music.models.Artist.find_or_create")
+@patch("music.models.Track.find_or_create")
+def test_mopidy_track_webhook_creates_track_and_scrobble(
+    mock_track_fc,
+    mock_artist_fc,
+    client,
+    valid_auth_token,
+    mopidy_track,
+):
+    artist = Artist.objects.create(name="Sublime")
+    album = Album.objects.create(name="Sublime", album_artist=artist)
+    track = Track.objects.create(
+        title="Same in the End",
+        artist=artist,
+        base_run_time_seconds=60,
+    )
+    track.albums.add(album)
+
+    mock_artist_fc.return_value = artist
+    mock_track_fc.return_value = track
+
+    url = reverse("scrobbles:mopidy-webhook")
+    headers = {"Authorization": f"Token {valid_auth_token}"}
+    response = client.post(
+        url,
+        mopidy_track.request_data,
+        content_type="application/json",
+        headers=headers,
+    )
+    assert response.status_code == 200
+    assert response.data == {"scrobble_id": 1}
+
+    scrobble = Scrobble.objects.get(id=1)
+    assert scrobble.track == track
+    assert scrobble.source == "Mopidy"
+
+
+@pytest.mark.django_db
+@patch("music.models.Artist.find_or_create")
+@patch("music.models.Track.find_or_create")
+def test_jellyfin_track_webhook_creates_track_and_scrobble(
+    mock_track_fc,
+    mock_artist_fc,
+    client,
+    valid_auth_token,
+    jellyfin_track,
+):
+    artist = Artist.objects.create(name="Carly Rae Jepsen")
+    album = Album.objects.create(name="Emotion", album_artist=artist)
+    track = Track.objects.create(
+        title="Emotion",
+        artist=artist,
+        base_run_time_seconds=60,
+    )
+    track.albums.add(album)
+
+    mock_artist_fc.return_value = artist
+    mock_track_fc.return_value = track
+
+    url = reverse("scrobbles:jellyfin-webhook")
+    headers = {"Authorization": f"Token {valid_auth_token}"}
+
+    with time_machine.travel(datetime(2024, 1, 14, 12, 00, 1)):
+        jellyfin_track.request_data["UtcTimestamp"] = timezone.now().strftime(
+            "%Y-%m-%d %H:%M:%S"
+        )
+        response = client.post(
+            url,
+            jellyfin_track.request_json,
+            content_type="application/json",
+            headers=headers,
+        )
+        assert response.status_code == 200
+        assert response.data == {"scrobble_id": 1}
+
+        scrobble = Scrobble.objects.get(id=1)
+        assert scrobble.track == track
+        assert scrobble.source == "Jellyfin"
+
+
 @pytest.mark.skip("Need to refactor")
 @pytest.mark.django_db
 @patch("music.utils.lookup_artist_from_mb", return_value={})
diff --git a/vrobbler/apps/books/tests/test_koreader.py b/vrobbler/apps/books/tests/test_koreader.py
index f55b5a6..76988ba 100644
--- a/vrobbler/apps/books/tests/test_koreader.py
+++ b/vrobbler/apps/books/tests/test_koreader.py
@@ -1,11 +1,16 @@
 import pytest
 from unittest import mock
+from datetime import datetime
 
 from books.koreader import (
     KoReaderBookColumn,
     build_book_map,
     build_page_data,
     build_scrobbles_from_book_map,
+    get_author_str_from_row,
+    lookup_or_create_authors_from_author_str,
+    create_book_from_row,
+    process_koreader_sqlite_file,
 )
 
 
@@ -52,3 +57,157 @@ def test_build_scrobbles_from_pages(
     assert len(scrobbles[3].logdata.page_data.keys()) == 20
     assert len(scrobbles[4].logdata.page_data.keys()) == 20
     assert len(scrobbles[5].logdata.page_data.keys()) == 18
+
+
+def test_get_author_str_from_row():
+    row = [
+        1,
+        "Test Book",
+        "John Smith\nJane Doe",
+        0,
+        0,
+        0,
+        300,
+        "",
+        "",
+        "abc123",
+        0,
+        120,
+    ]
+    result = get_author_str_from_row(row)
+    assert result == "John Smith, Jane Doe"
+
+
+def test_get_author_str_from_row_strips_middle_initials():
+    row = [
+        1,
+        "Test Book",
+        "John A. Smith",
+        0,
+        0,
+        0,
+        300,
+        "",
+        "",
+        "abc123",
+        0,
+        120,
+    ]
+    result = get_author_str_from_row(row)
+    assert result == "John Smith"
+
+
+@pytest.mark.django_db
+def test_lookup_or_create_authors_from_author_str_creates_new_author():
+    author = lookup_or_create_authors_from_author_str("New Author")
+    assert len(author) == 1
+    assert author[0].name == "New Author"
+
+
+@pytest.mark.django_db
+def test_lookup_or_create_authors_from_author_str_finds_existing():
+    from books.models import Author
+
+    Author.objects.create(name="Existing Author")
+    author = lookup_or_create_authors_from_author_str("Existing Author")
+    assert len(author) == 1
+    assert author[0].name == "Existing Author"
+
+
+@pytest.mark.django_db
+def test_lookup_or_create_authors_from_author_str_ignores_na():
+    author = lookup_or_create_authors_from_author_str("N/A")
+    assert len(author) == 0
+
+
+@pytest.mark.django_db
+def test_lookup_or_create_authors_from_author_str_handles_multiple():
+    author = lookup_or_create_authors_from_author_str("Author One, Author Two")
+    assert len(author) == 2
+
+
+@pytest.mark.django_db
+def test_create_book_from_row():
+    row = [
+        1,
+        "Test Book - Author Name",
+        "Test Author",
+        0,
+        0,
+        0,
+        300,
+        "",
+        "",
+        "abc123def456",
+        3600,
+        120,
+    ]
+    book = create_book_from_row(row)
+    assert book.title == "Test Book"
+    assert book.pages == 300
+    assert "abc123def456" in book.koreader_data_by_hash
+    assert book.authors.count() == 1
+
+
+@pytest.mark.django_db
+def test_create_book_from_row_handles_title_with_author_suffix():
+    row = [
+        1,
+        "Test Book - Author_Name",
+        "N/A",
+        0,
+        0,
+        0,
+        300,
+        "",
+        "",
+        "abc123def456",
+        3600,
+        120,
+    ]
+    book = create_book_from_row(row)
+    assert book.title == "Test Book"
+    assert book.authors.count() == 1
+    assert book.authors.first().name == "Author"
+
+
+@pytest.mark.django_db
+def test_create_book_from_row_handles_null_bytes():
+    row = [
+        1,
+        "Test\x00Book",
+        "Test\x00Author",
+        0,
+        0,
+        0,
+        300,
+        "",
+        "",
+        "abc123def456",
+        3600,
+        120,
+    ]
+    book = create_book_from_row(row)
+    assert "TestBook" in book.title
+    assert "TestAuthor" in book.authors.first().name
+
+
+@pytest.mark.django_db
+def test_build_book_map_ignores_garbage_titles(koreader_rows):
+    garbage_row = [
+        999,
+        "KOReader Quickstart Guide",
+        "N/A",
+        0,
+        0,
+        0,
+        0,
+        "",
+        "",
+        "garbage123",
+        0,
+        0,
+    ]
+    book_map = build_book_map(koreader_rows.BOOK_ROWS + [garbage_row])
+    assert len(book_map) == 1
+    assert 999 not in book_map