Like most collections of columns or blog posts, this is hit and miss. Unlike most collections of columns or blog posts, the hits are very good, and most of the misses are not that bad.
The only part that didn't really work for me is the "how to fake that you've read....". Most of the rest was quite delightful, particularly the pieces where Leto examines her own childhood and familial relations to books.
She is a good writer, and I enjoy her snark and her eye for skewering character, so I suspect I'd probably enjoy reading anything else she writes.