Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent for understanding basic photographic techniques

I've read this book several times and have found extremely useful for taking professional quality photographs. Make no mistake: This is an entry level book. But it certainly rates five stars for explaining clearly and concisely the basics of taking good photographs. Also, it points readers to areas where they will want to do more study to better understand more advanced photographic techniques. This book is must for any photographer's book shelf.