Reference Books

Egyptian Hieroglyphs, Bill Manley
Best choice for beginners, in my opinion
Middle Egyptian, James Allen
A more thorough treatment.
Decoding Egyptian Hieroglyphs, Bridget McDermott
More prose, culture and illustrations.
Egyptian Grammar, Alan Gardiner
Last revised in 1957, this book is still the standard reference work. It is hard to find physical copies and expensive when found, but it is available in University libraries and as a downloadable pdf from various sources on the web
Another standard text.
Programmed learning course. Highly reviewed.
Highly reviewed.