Dragon188, Matt petty much said it all; however, I would add when hiking it is a good idea to wear loose fitting trousers and high top boots.
Did I just say that? One of many rules I break in snake country.
For piece of mind, I also hike with a walking stick. Not only does it assit me from stumbling, falling, tripping and otherwise hurting myself when hiking; and though NOT PROVEN, I have on numerous occasions while walking and with my quiet thoughts, been startled by the peircing sound of rattlers and I swing my stick toward the noise. Basically, I want something between me and the snake, should it be stricking I hope to knock it out of the way, or I hope to distract it as I look for it, and then back off nice and easy. One thing I will say, after all these years, when I hear those rattlers, it still scares the "you know what" out of me and my heart just stops!
As far as books, I would suggest a basic book. A Sierra Club Naturalist's Guide, The Deserts of the Southwest, by Peggy Larson. It is a great overall book. An example, I used it to make sure what I seen one time was a Arizona Coral Snake when up at Horse Thief Basin area of the Bradshaws. Beautiful snake!