All The Image IO You Need to Know
Delving into the image file manipulation framework on iOS and the Mac
This book is available for download with iBooks on your Mac or iOS device. Multi-touch books can be read with iBooks on your Mac or iOS device. Books with interactive features may work best on an iOS device. iBooks on your Mac requires OS X 10.9 or later.
Image IO is an object oriented framework brought to iOS from Mac OS X. The framework provides a simple API to read and write all the image formats supported on iOS.
In this short book you'll learn the API and be able to take advantage of this powerful functionality in your apps.
Too little information
I simply can't recommend "All The Image IO You Need to Know" because it is too short and contains too little information for the money. What it does cover, it covers very well. For the money, I would have expected the author to include more ways to manipulate images besides just explaining how to make thumbnails and save them to disk.
As an aside, the author's "All the C You Need to Know" is quite good and worth the money, which is why I bought this book without a thought.
In a great continuation of the series, this book gets to the important parts fast for beginners and experts alike. While not only explaining what's going on with image io behind the scenes, the book covers how to optimize reading and writing large images, something that is crucial in this Retina-image-sized world we are in.
Can't wait for the next book as each one of these further my knowledge and make me a little bit stronger of a iOS dev.