I've always loved books about photography and I have a special fascination for ebooks written and published by the photographers themselves.
Shooting Shallow is "is a guide to understanding the concept of depth of field". It covers the theory behing depth-of-field, camera and lens consideration, and practical application to getting sharp images with beautiful bokeh.
The Long Exposure is a introduction to the process of creating long exposure photography. David is a master at this (check out his work) and in this ebook he explains the steps he takes to acheive his results. The ebook covers everything from the equipment required to post-processing. It focuses on Lightroom, but the principals can be applied to any software. This book made me buy a 10 stop neutral density filter and get into long exposure photography.
The ebooks are only $6 each and $10 if you buy them as a bundle.
However, to celebrate Valentines Day you can get a further 20% off the bundle if you buy it before 15th February and use the code "valentines" at checkout.
Both ebooks are beautifully made with great information. I recommend them both to anyone interested in the topics covered.