
With the exams ending, my parents have agreed to buy me one origami book. I am exhilarated, but I just cannot choose which book to buy! I suppose most of your guys have the following origami books, so I need your guys to help me choose which book is the most worth it. Please!

Here's the list:
Origami Design Secrets (Lang)
Passion Origami Tome 1 (Terry)
License to Fold (Terry)
Tanteidan 15
Dinosaur Origami (Kawahata)
So which book do you think is most worth it? Thanks beforehand!