I would advise you not to look for some reading primer for your memorization work for several reasons:
1) It will spoil the experience for you, because in most states it is basically a recounting of the ceremony you just went through and the knowledge that was shared.
2) Since every state is a little different, you have no guarantee that whatever you find will be what your lodge expects of you. In fact, I would wager that most sources that print the examinations are quite a bit older than whatever the Lodges in your area are currently using—and probably more complicated!
3) Part of the “work” that comes in the memorizing is the bonding that occurs between you and your mentor while you decipher the Lodge exam books. The relationship you do (or don’t) form with your mentor can basically make or break a man’s future participation in Freemasonry. These men will do more than teach you to read a cipher book—they will explain details of the degree you may have missed in your first presentation of it, they will fill you in on specifics of how your chosen lodge works, they will help introduce you to a wider circle of Masons within and without your Lodge, and they will assist you in finding your own “place” in the Lodge—whether that is as part of a committee, an officer, a ritualist, or other duty—these men will become your friends and help you assimiliate into your new Lodge. The best way to start a new friendship is by working together on a simple project, and that is what this memorization work does.
4) Rushing the experience doesn’t benefit you in the long run. It’s more important that you understand the material than just your ability to parrot it back out on command. This only happens for most people by taking your time with the material. Becoming a Mason should never be considered a “race”. It’s really quite common for most men in my area to attain Master Mason in 3 months (one degree per month), but there is absolutely nothing wrong with taking longer than that. Heck, I’ve read some accounts from earlier centuries where it was more common to be one degree per year. Masonry was never intended to be a crash-course—it is a journey of self-discovery, not a destination in and of itself.