Best FPGA introductory book

Like all FPGA starters, I also struggled for a book that will serve as an FPGA tutorial. It was only this year (copyright of this book is February 2008) that I found one. This is for me (so far) the best introductory FPGA book--FPGA Prototyping by VHDL Examples, authored by Pong Chu. Learning by doing is the most effective pedagogical style and this book did not fail to deliver that one. I find Pong Chu's writing style very easy to understand because the discussions are clear. That is the most essential thing in relaying knowledge to a beginner -- clarity. That's enough for me. I don't need to say more about it.