Cassandra Vivian, 2nd edition, The American University in Cairo Press 2002
Comprehensive book about Egypt’s Western Desert. Lots of detailed info, history, GPS waypoints, but is unfortunately not always accurate. One doesn’t have much choice however.
Wil & Sigrid Tondok, 15th edition, Reise Know-How 2004
5th edition, Rough Guides 2003
Topographic maps made by the old Soviet Union, based on satellite photography. Useful, but learn your Cyrillic alphabet. You can download the digital maps for free
One of the better overview maps of Egypt at a reasonable scale, but quite useless in the desert regions.
Chris Scott, 2nd edition, Trailblazer Publications 2004