Wanted to give everyone a head's up. I just discovered today that the book
is available for Amazon's Kindle for only 99 cents.
Unfortunately B&N doesn't offer it. Only ebook version I've found so far is the one for Kindle.
You can however get a different translation (no commentary) as used copies at both B&N and Amazon as a paperback (I own it also).
Four Essays on Karma by Yuen Liao Fan