If you are getting your first digital camera or simply want to improve your beginner photography skills, you can get a crash course and some helpful advice with these top books for beginning digital photography.
1. The Digital Photography Book
This is a great book which provides techniques and tips on taking wonderful digital photos, but it is explained in an easy-to-understand manner for beginners. Written by a well-known authority, Scott Kelby, this book is handy for those who want some quick and useful tips to improve pictures. 
2. Digital Photography All-in-One Desk Reference for Dummies
This is a great guide to photography itself, with less emphasis on the geekie side of digital photography. Not for absolute beginners (you should have a basic grasp of the concepts already), but ideal for anyone who wants to learn how to take good pictures with a digital camera.3. Mastering Digital Photography
This book does a great job of both explaining how digital cameras work (and differ from film), and teaching readers how to take good pictures with digital cameras. I like the breakdown by photo type (action, macro, portraits, and so on).4. Rick Sammon's Complete Guide to Digital Photography
Using photos as examples to guide readers, this is a great book for people of all learning levels who are switching to digital. It is broken down into a series of lessons.5. Digital Photographer's Handbook
This is great for those who want to understand all layers of digital photography, from the camera to the computer to the print. This book is also attractive and easy to follow.6. The National Geographic Field Guide to Photography: Digital
Very simple to follow, and featuring insights from the magazine's photographers, this is a great book for beginners who want an introduction to digital photography, tips and ideas.