Have you read either of them? Don't recommend books you haven't read. I know for a fact that the O'Reilly book is crap.
Another book worth looking at is: Recipes with Angular.js which is covered under Leanpub Unconditional Return Guarantee. so if you don't like the book. 45 days of purchase you can get a 100% refund.
https://leanpub.com/recipes-with-angular-js
so you can try the above, if you don't like the other two