The following are the best books guide books we've read on Death Valley and the Mojave Desert:
The Explorer's Guide to Death Valley National Park by T. Scott Bryan and Betty Tucker-Bryan. Published in 1995 by University Press Of Colorado, ISBN 0-87081-408-5. I'm sure that Amazon.Com will be more that glad to sell you a copy.
This is *the* book to get. Its 370+ pages has the best coverage of 'Off-Road' trails we've come across.
The best hiking book, and the best for folks who are looking for more unusual places to visit is:
Hiking Death Valley, A guide to it's natural wonders and mining past by Michel Digonnet. Published in 1997. ISBN 0-9659178-0-0. This 500+ page book has the advantage in that the topo maps are clear and it contains significantly more narration and history.
Road Guide To Death Valley by Barbara and Robert Decker, Maps and Drawings by Rick Hazlett. Published in 1989 by Double Decker Press, ISBN: 0-9621019-3-1. This 48 page booklet is great for the visitor with only a day or two in the park. It covers all the major attractions.
Inside... Death Valley by Chuck Gebhardt and Tom Willis (5th Edition). Published 1995. ISBN: 0-9601410-4-9. This book has been around over 23 years (It says so on the rear cover). It contains 190 pages of information.
Death Valley A Guide: The 1938 WPA Guide Updated for Today's Traveler. Written and compiled by the Federal Writers' Project of the Works Progress Administration of Northern California. Edited by Cheri Rae. Published by Olympus Press 1991. ISBN: 0-934161-10-0.
This book is a must for any Death Valley library.
Exploring Death Valley, Third Edition, by Ruth Kirk. Published by Stanford University Press in 1981. ISBN: 0-8047-0943-2.
This book is one of the definitive guide books to Death Valley, a must for the collection.