Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you buy only one book on film scanning, this should be it

Actually, this is the only book on film scanning, and it's a good one. The author covers all the bases in its 13 chapters, and answers the key questions for all levels of readers, from beginners to photographers and artists. Several chapters are devoted to basics, others cover getting the best scans, while additional chapters provide information on alternative methods, such as using an outside scanning service. There's even a section on improving your scans with image editors. Quite comprehensive!