The World of Mathematics: A Four-Volume Set (Paperback)
by James R. Newman

Universal Principles of Design (Hardcover)
by William Lidwell , Kritina Holden , Jill Butler

This wonderful and bestselling design book gets you thinking about design in new ways.

The Design of Everyday Things (Paperback)
by Donald A. Norman

This book should be required reading for software developers and anyone who designs and builds products for human use.

The Inmates Are Running the Asylum: Why High Tech Products Drive Us Crazy and How to Restore the Sanity (Paperback)
by Alan Cooper

Wonderful metaphors and framework for talking about interaction with software-based technology. Should be required reading for all programmers.

Mastering Regular Expressions (Paperback)
by Jeffrey Friedl

Written in easy to understand language, this book is an excellent choice for both learning the basics as well as better preparing yourself to apply them in real-world situations.

Shigley's Mechanical Engineering Design (Mcgraw-Hill Series in Mechanical Engineering) (Hardcover)
by Richard Budynas , J. Keith Nisbett

Machine Design: An Integrated Approach (3rd Edition) (Hardcover)
by Robert L. Norton

What the Best College Teachers Do (Hardcover)
by Ken Bain

Learning to Listen, Learning to Teach: The Power of Dialogue in Educating Adults (Paperback)
by Jane Vella

An excellent book which demonstrates the power and value of dialogue over monologue, and active over passive learning when it comes to educating adults.

Planning Programs for Adult Learners: A Practical Guide for Educators, Trainers, and Staff Developers, 2nd Edition (Paperback)
by Rosemary S. Caffarella

A great guide and resource book for anyone who is interested in the programming aspect of any type of organizational or educational and training setting.