Listmania!
Blender
The Official Blender 2.3 GuideThe Official Blender 2.3 Guide by T. Roosendaal
Buy used from: £15.99
Official Blender 2.3 guide. Check blender.org e-shop for better price
The Official Blender 2.0 Guide (Miscellaneous)The Official Blender 2.0 Guide (Miscellaneous) by Sven Wouters
Buy used from: £14.50
Official 2.0 guide. UI has changed so value could be limited.
The Official Blender GamekitThe Official Blender Gamekit by T. Roosendaal
Buy used from: £24.95
Official gamekit guide. Gamekit is currently in mess, so... Anyway, it is cheaper from Amazon US.
Introducing Character Animation with BlenderIntroducing Character Animation with Blender by Tony Mullen
Buy new: £17.92 / Used from: £15.06
The Blender BookThe Blender Book by Carsten Wartmann
Buy used from: £4.68
3D Game Blender 2.03D Game Blender 2.0
never seen this book, but your miles may vary
Collision Detection in Interactive 3D Environments (The Morgan Kaufmann Series in Interactive 3D Technology)Collision Detection in Interactive 3D Environments (The Morgan Kaufmann Series in Interactive 3D Technology) by Gino van den Bergen
Buy new: £50.35 / Used from: £17.49
Not exactly on Blender, yet useful from my point of view.
Real-Time Collision Detection (The Morgan Kaufmann Series in Interactive 3D Technology)Real-Time Collision Detection (The Morgan Kaufmann Series in Interactive 3D Technology) by Christer Ericson
Buy new: £26.50 / Used from: £28.00
Not exactly on Blender, yet useful from my point of view.
3D Game Engine Architecture: Engineering Real-Time Applications with Wild Magic (The Morgan Kaufmann Series in Interactive 3D Technology)3D Game Engine Architecture: Engineering Real-Time Applications with Wild Magic (The Morgan Kaufmann Series in Interactive 3D Technology) by David H. Eberly
Buy new: £45.88 / Used from: £35.37
Not exactly on Blender, yet useful from my point of view.