David Eagleman's book, Sum: Forty Tales from the Afterlives is an engrossing imagining of forty versions of what happens after we die. It clocks in at 109 pages, so you can easily read in one evening. Expect to keep it longer than one night (past its due date, like I did) because you'll keep skimming the various scenarios, thinking about what it would be like to:
live all the moments of your life over again, but with them rearranged and sorted by categories (sleep for decades, then shower for a while, etc. etc. etc)
walk through a heaven populated by all of the gods that have seen their followers disappear on earth. You know, play frisbee with Zeus and Thor.
get to heaven and be disappointed, what with all the heathens there too.
...and 37 more!
This book has the early lead for Jeff's favorite book of 2010, with Kitchen Knife Skills and Mark Bittman's How to Cook Everything.
Get it here.