My prop prof made his own supplement, and we used that. It was very plain language and full of practice problems. I can e-mail that to you if you want. If so, send me a message with your e-mail address and I'll get it out to you. Also, the other section used Wendel and Nelson's Possessory Estates & Future Interests Primer, 2d, and everyone seemed to like it also. You can buy that through the Westlaw online bookstore. It's short and sweet too. Also, when I looked to see if it was available on the Westlaw online bookstore, I saw a workbook that looked pretty good. I found both by key word searching estates and future interests primer on that site.