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Title: unique and well done
Review: Writing Apache Modules is a rather arcane specialty; with so many excellent free modules already available, most people can find more than the need with some simple configuration... but if you do end up with a more hardcore need, you simply have to have this book - and unlike many other books which are the first or only books to cover their subject, this one is clear, well thought out, and very helpful for the task at hand. Even with the full source and lots of examples handy online, this book and a handful of bookmarks made a huge difference to me. (It sits on a shelf now, project completed, but I wouldn't give it up!)
