This book isn't written for the latest official word list, but there aren't THAT many changes in what words are acceptable.But this book is great. It explains basic strategy (which most people would never think about) such as how to decide what letters to leave on your rack, and also gives you lists of key words to remember, such as the 2-letter-words and the SATINE words and the 3-letter words with X, J, or Z. And then there are exercises to help you find those words on your rack. Some of these exercises are really tough.
After reading this book and studying a little bit, I went from being the WORST player in the world to being a player who averages about one bingo per game. (A bingo is a play in which all seven tiles are used.)
Buy this book.
And if you need updated word lists, check out the on-line word generator.