Here is a list of books I have that goes from basics to advanced. I'm not sure what skill level your at but most people say the Robot Builder's Bonanza is a good place to start or Robotic's Demystified.
Absolute Beginner's Guide to Building Robots
Amphibionics Build Your Own Biologically Inspired Reptilian Robot - Karl Williams
Anatomy of a Robot - Charles M Bergren
Autonomous Mobile Robots - Shuzhi Sam Ge & Frank L Lewis
Build a Remote Controlled Robot - David R Shircliff
Build Your Own Combat Robot - Pete Miles
Cells and Robots - Milutinovic and Lima
CNC Robotics - Geoff Williams
Concise Encyclopedia of Robotics - Stan Gibilisco
Control of Intelligent Robotic Interfaces - Cristian Secchi
Control of Single Wheel Robots - Yangsheng Xu & Yongsheng Ou
CRC Press - Mechanical Engineering Handbook - Robotics
CRC Press - Opto-Mechatronic Systems Handbook
CRC Press - Robotics and Automation Handbook
CRC Press - The Mechatronics Handbook
Designing Mobile Autonomous Robots - John Holland
Designing Sociable Robots - Cynthia L Breazeal
Efficient Collision Detection for Animation and Robotics - Ming C Lin
Embedded Robotics - Thomas Braunl
Environment Learning for Indoor Mobile Robots - Andrade Cetto & Sanfeliu
Fundamentals of Robotic Mechanical Systems - Jorge Angeles
Fundamentals of Robotics Linking Perception to Action - Ming Xie
Handbook of Geometric Computing - Eduardo Bayro Corrochano
Informatics in Control, Automation and Robotics I - Braz J
Intelligent Autonomous Robotics - A Robot Soccer Case Study - Peter Stone
Introduction to AI Robotics - Murphy R.R.
Introduction to Autonomous Mobile Robots - Siegwart Nourbakhsh
Introduction to Robotics Mechanics and Control - J J Craig
Introductory Robotics - J M Selig
LEGO Mindstorms Masterpieces - Building and Programming Advanced Robots
Mechantronics An Introduction - Robert H Bishop
Mechatronic Systems - Georg Pelz
Mechatronics - A Preumont
Mobile Robots Inspiration to Implementation - Flynn and Jones
Modern Robotics Building Versatile Macines - Harry Henderson
PDA Robotics - Douglas H Williams
PIC Robotics - John Iovine
Robot Builders Bonanza - Gordon Mccomb
Robot Mechanisms and Mechanical Devices Illustrated - Paul E Sandin
Robot Motion and Control - M Thoma & M Morari
Robot Vision - Stefan Florczyk
Robotics Demystified - Edwin Wise
Robotics Designing the Mechanisms for Automated Machinery - Sandier
Robots Androids and Animatrons - John Lovine
Scientific Methods in Mobile Robotics - Ulrich Nehmzow
Squeak Learn Programming with Robots - Stephane Ducasse
The Definitive Guide to Building Java Robots - Scott Preston
Underwater Robots - Gianluca Antonelli
Visual Perception and Robotic Manipulation - Taylor & Kleeman
Welding Robots Technology System Issues and Applications - J Norberto Pires