I worked my way through the examples he provided and made time to email him the bugs--as I imagine many other readers do after they download the book from www.postgresql.org. It's one way to give back if you learn something--but you aren't gonna buy the book soon. Bruce Momjian's book will not be filled with bugs--it's reviewed by just about every PostgreSQL programmer. That's pretty nice. I have seen books where EVERY illustration is mislabeled--books where there are LOTS of useless screen-shots. Bruce's book is not one of them.
Read Bruce's book after you read "The Practical SQL Handbook" by Judith S. Bowman. With them you'll learn the basics of SQL usage.
