Book of Mormon Central just posted an
excellent video on the facsimiles of the Book of Abraham:
Evidences of the Book of Abraham:
Facsimiles
Further Reading
There are many studies on the facsimiles. For those who wish to begin a study into this topic of the Book of Abraham, I would suggest the following works to begin with:
David Bokovoy on the Book of Abraham Facsimiles and the Semitic Adaptation of Existing Sources
Blake T. Ostler, "Abraham: An Egyptian Connection"
Jeff Lindsay, The Book of Abraham Part 2: The Facsimiles and Other Issues
Stephen O. Smoot, Pornography, Agathography, and Egyptian Sex Gods in Mormon Scripture