Warriors

The First Series; Warriors

1.Into the Wild

2.Fire and Ice

3.Forest of Secrets

4.Rising Storm

5.A Dangerous Path

6.The Darkest Hour

The Second Series; The New Prophecy

1.Midnight

2.Moonrise

3.Dawn

4.Starlight

5.Twilight

6.Sunset

The Third Series; Power of Three

1.The Sight

2.Dark River

3.Outcast

4.Eclipse

5.Long Shadows

6.Sunrise

The Fourth Series; Omen of the Stars

1.The Fourth Apprentice

2.Fading Echoes

2.The Fourth Apprentice

Manga

1.The Lost Warrior

2.Warrior's Refuge

3.Warrior's Return

4.Rise of Scourge

5.Tigerstar and Sasha: Into the Woods

6.Tigerstar and Sasha: Escape from the Forest

7.Tigerstar and Sasha: Return to the Clans

8.Shattered Peace

Super Edition

1.Firestar's Quest

2.Bluestar's Prophecy

Guides

1.Secrets of the Clans

2.Cats of the Clans

3.Code of the Clans

Upcoming

Shattered Peace- Ravenpaw manga 1 (dunno.),
Strangers in the Snow- Ravenpaw manga 2 (fall 2009),
Fading Echoes- Omen of the Stars 2 (dunno),