This is a short list of good, reliable books about ancient Egypt.
Another, more extensive list can be found here.
With a few exceptions, they are not too hard to get through for the regular reader,
but provide excellent information and might even whet your appetite!

Äegypten, die Welt des Faraonens - Hartwig Altenmueller et al Könemann Verlagsgesellschaft 1998 ISBN 3-8290-3042 Development of Religion and thought in ancient Egypt - James H. Breasted University of Pennsylvania Press 1972 ISBN 0-8122-1045-X Myth and symbol in Ancient Egypt - R.T. Rundle Clark Thames & Hudson 1959 ISBN 0-500-27112-7 The Ancient Egyptians - A. Rosalie David Routledge & Kegan Paul 1982 ISBN 0-7100-0878-3 Egyptian Myths - George Hart British Museum Press 1990 ISBN 0-7141-2064-2 Conceptions of God in Ancient Egypt; The One and the Many - Erik Hornung Cornell University Press 1982 ISBN 0-8014-8384-0 The Great Goddesses of Egypt - Barbara S. Lesko University of Oklahoma Press 1999 ISBN 0-8061-3202-7 Ancient Egyptian Literature - Miriam Lichtheim Vol. I, II, III University of California Press 1973-76 ISBN 0-520-02899-6, 0-520-03615-8, Daily Life of the Egyptian Gods - Dimitri Meeks & Christine Favard-Meeks Cornell University Press 1996, ISBN 0-8014-3115-8 Daughters of Isis; Women of Ancient Egypt - Joyce Tyldesley Penguin Books, London 1995, ISBN 0-14-017596-2 Symbol & Magic in Egyptian Art - Richard H. Wilkinson Thames & Hudson, 1994 ISBN0-500-23663-1 Reading Egyptian Art - Richard H. Wilkinson Thames & Hudson, 1992 ISBN 91-37-103-82-2 The Complete Temples of Ancient Egypt - Richard H. Wilkinson Thames & Hudson, 2000 ISBN 0-500-05100-3 Religion in Ancient Egypt; Gods, Myths and Personal Practice - edited by Byron E. Shafer Cornell University Press 1991 ISBN 0-8014-2550-6 Ancient Egyptian Religion - Stephen Quirke British Museum Press 1992 ISBN 0-7141-0966-5