Ancient Egyptian mythology is complicated and convoluted. As with the Greeks (some of whom thought their knowledge of the gods actually came from Egypt) there is an early primeval system, the gods of the Ennead, who are by and large abstractions. Then there are the primary gods, akin to the Olympians in Greek mythology, followed by a miscellany of less important gods. The difference is that the Egyptians were remarkably conservative people, and they survived that way for over 3000 years. Over that time new myths were related or acquired from other peoples, but they refused to throw out any of the old beliefs or gods. They were hoarders of mythology like they were hoarders of everything else, piling up the old gods and spells in the sacred garage -- who knows when they might come in handy, especially in the afterlife. So there isn't a lot of cohesion or coherence in the stories. They're more like relics, or the ushabtis that the pharoahs had placed in their tombs to serve them in the afterlife. They're more like individual things, holy knick-knacks, than parts of a theological system.
So presenting this material in an orderly fashion is a bit of challenge. Garry Shaw does it pretty well by dividing it into three parts -- creation stories, the gods in everyday life, and the mythology of death and the afterlife (incredibly important for the Egyptians.) Sprinkled between the stories are photos and drawings of the images and hieroglyphs that tell the stories, as well as an occasional spell or two. Shaw has a sense of humor, obviously. Here he shares how to summon Imhotep (the architect of the first pyramids, and later a god himself) :
If you feel the need to summon Imhotep in a dream, follow these instructions, as recorded on a 3rd century AD Greek magical papyrus, now in the British Museum:
1. Find a 'gecko from the fields'.
2. Drown it in a bowl of lily oil.
3. Engrave the words 'Asclepius of Memphis' (i.e. Imhotep) in Greek onto an iron ring that was once a shackle.
4. Dunk the ring in your expired-gecko lily oil.
5. Hold the ring up to the Pole Star.
6. Say seven times, 'Menophri, sitting on the cherubim, send me the real Asclepius, not a deceitful demon instead of the god.'
7. In the room where you sleep, burn three grains of frankincense in a bowl and pass the ring through the smoke.
8. Say 'Lord Asclepius, appear!' seven times.
9. Wear the ring on the index finger of your right hand while you sleep.
10. Wait for Imhotep to appear in your dream.
Good luck!