Tim (Published author. Snr Lecturer Photography at the University of Chester, UK, Ilford & Harman Masterclass leader, owner of Photocollege, online learning centre for photo-imaging www.photocollege.co.uk) Daly 
The Fundamentals of Digital Photography [PDF ebook] 

The Fundamentals of Digital Photography explores the guiding principles of great photography through efficient and effective technique. Easy-to-follow instructions teach you how to work with a digital workflow and develop a solid understanding of materials and processes. You will also find creative inspiration through the work of some of the world’s great historical photographers, and discover how the history of photography can feed into your own work. Themed projects, featuring stunning images from contemporary international practitioners, will help you focus your ideas to produce truly original photographs.The assignments at the end of each chapter help you to create a body of work that will expand your photographic portfolio. By shooting these carefully devised assignments, you will become a confident software user, and develop the all-important visual and conceptual skills essential to successful photography.