The books with * beside them I extremely recommend.
Published books
Martin The Warrior*
Mossflower
Outcast Of Redwall*
Mariel Of Redwall
The Bellmaker*
Salamandastron
Redwall*
Mattimeo
The Pearls Of Lutra
The Long Patrol
Marlfox*
The Legend Of Luke(hardcover)*
The Great Redwall Feast(hardcover, picturebook)*
The Redwall Map & Riddler*
Books currently being made
Lord Brocktree
A Redwall Winter's Tale(With thanks to Tea Lilly for correcting me)