For today only O’Reilly is offering free copies of it’s normally $27.99 Paypal API book as an eBook.
While this is not specifically an iOS development book, there is a chapter featuring the Paypal mobile express checkout Library. What’s cool is Mobile express checkout features api’s that can be used both apps, and on mobile websites.
You can get the book on O’Reilly’s website here (please note this is only a temporary offer, and could vanish soon):
http://oreilly.com/store/paypal.csp
If you want to know more about Paypal’s API’s then this is the book to get, especially while it’s free.
[via Under The Bridge]
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