I have completed through chapter 6 of my book, "PostgreSQL: Introduction and Concepts." Of course, this is only the first draft. It can be viewed at: http://www.postgresql.org/docs/awbook.html There are major improvements in this version. I have added sections to chapter 4 dealing with DEFAULT and functions/operators. The figure placement and font usage is improved. Chapter 6 covers using multiple tables and joins. This was a very difficult chapter for me to write. -- Bruce Momjian | http://www.op.net/~candle [EMAIL PROTECTED] | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026 ************