Focal Press Book: Digital Painting in Photoshop by Susan Ruddick Bloom

Digital Painting in Photoshop - This book will teach you how to take your images (photos) to the next level - making them into true works of art. You'll learn that with a little bit of help and guidance, you can use Photoshop to take your photos and make them into something completely different - and artistic. Additional chapters cover illustration techniques in Photoshop, and using third-party software to create painterly effects.