One of the signs of maturity of an open source software is when some really high-end books about the software start hitting the shelves.

Pro Drupal Development set a new high mark when it was initially released. Now this Second Edition covers even more (and has the higher page-count to show for it), with everything updated for the Drupal 6 API.

We just received our first seven copies, to get us started. We'll be picking up some more as needed.

You can pick up your copy at Amazon. Go there through http://drupalbook.com and a piece of the sale benefits the Drupal Association.

• Laura's blog
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