From the publishers of BattleBots: The Official Guide comes this do-it-yourself guide to BEAM (Biology, Electronics, Aesthetics, Mechanics) robots. They're cheap, simple, and can be built by beginners in just a few hours, with help from this expert guide complete with full-color photos. Get ready for some dumpster-diving!
I used JunkBots, Bugbots, and Bots on Wheels: Building Simple Robots With BEAM Technology (Paperback) by David Hrynkiw as a reference while building robots with my grandson. I did find useful information here in an easy-to-understand format. The same information could well be found via searches on the internet but I lake having it in in front of me.