Agreed, I naively bought this book. Then I found out you were not allowed to use the source code in the book for commercial purposes without purchasing a separa

Agreed, I naively bought this book. Then I found out you were not allowed to use the source code in the book for commercial purposes without purchasing a separate very expensive license. Definitely, recommend you stay as far as way from this as you can. It's my own 1-star review on Amazon.