Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You need both programs, and this book.

Corel Painter and Photoshop complement each other, with each having particular strengths that the other does not. This book shows you how to combine the natural media and artistic effects possible with Painter with the retouching and color correction features of Photoshop. You'll find lots of useful techniques, along with step-by-step instructions on how to achieve them.