Book: How to design and make Automata

Robert Addams has written a few books on how to make automata. I have read How to design and make Automata (the one with the purple cover). I assure you that it is well written and would be helpful to anyone who wants to make an automaton.

Here's a link for ordering How to Design and Make Automata, though you should be sure to check out the whole site -- there is a lot of good information.