Jeff,
We decided to not use an ISBN # on this book. Eileen had used the last of the batch of 10 she got on our collection of the first 5 years of RIFLE LOONY NEWS, and was deciding whether to purchase another batch. Apparently the only reason is for stocking or search purposes for bookstores and other secondary retailers, and since we sell them all directly, and know exactly where they're stocked, we decided to just print the books without one.
