Within these pages you will find information about ISO, Shutter Speed, Aperture and how they all work together. You will also gain understanding of how your camera meter works, what the different exposure modes represent, and how to best use the modes.
This book was designed to be used specifically with the iPad and if you are an iPad owner then you can get your copy from the iTunes Store here: https://itunes.apple.com/us/book/understanding-basics-exposure/id570851846?mt=11#
Now, if you are saying “What about me? I don’t have an iPad!” Well, I’ve got you covered. If you follow this link you can download a PDF version here: http://www.lulu.com/shop/jason-eldridge/understanding-the-basics-of-exposure/ebook/product-20453300.html
Cost: $2.99 for either version