If you have an interest in photography, it is probably mostly about motive and angle as well as such topics like light conditions and shadow effects and the skill/luck to catch the exact right moment.
But technology also matters – no matter if you are using a professional camera or your mobile phone for shooting your masterpiece, you are likely to be interested in the quality of the lens and the possibilities for adjusting the image properties – for instance to create a crisp portrait with a perfect bokeh (blurred background).
Part of the technology is about the post processing of the photo. If you are a puritan and only allow yourself to cut the image edges a bit or if you can see the advantage in also to adjust light effects and colour tone, you will in any case need proper software to help you out – or juggle with physical filters during the photo session, which of course also has its charm.
Almost all photographers are today using digital photos and a very large part of these, be it amateurs or professionals, are using some kind of software for at least storing photos, if not to also do some editing on them.
Apress, which is part of the large Springer publisher, is mainly publishing books for IT people, and these are almost always published both as e-books and on paper. IT people are quite often working with photos and other types of images, and therefore there is a natural overlap in the needs of photographs and other people interested in photos and then the mentioned IT people. So wouldn’t it be reasonable to believe that some of Apress’ books are right on for photo people?
I checked the catalogue and found several interesting books for photo people, picking out a few of them for this article. The books can be bought directly from the publisher, and as e-books they can then be downloaded immediately (typically in pdf and epub formats, allowing you to use most e-book readers, including such as Amazon Kindle), while the paper books are being shipped without added shipping costs. Springer will send you a letter afterwards with an invoice/receipt for your bookkeeping.
The books can also be bought in a very advantageous subscription – you can then read all of them (there are several thousands) online, as long as the subscription is active.