I found one on Amazon for like $10 but most go for $16.00 used. Brand new they're $25.
Amazon.com: Turbo: Real-World High-Performance Turbocharger Systems (Sa Design) (Sa Design): Jay K. Miller: Books
Even if you have to buy one new, it'll easily be one of the best reads on turbos you've either 1) never read 2) read as much as I do 3) Still don't quite get it.
This book is good from start to finish and packed with photos to keep it interesting, printed on quality paper, written in words that regular people easily understand. This is one of the first of it's type in many years, many are way too technical for a beginner. Point is, read it, you won't regret it, smoke moar Cali bud....you won't regret that either. peace out'chall.