The best book you can buy for AS,
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This review is from: The Complete Companions: AS Student Book for AQA A Psychology (Third Edition) (Paperback)
Mike Cardwell is the chief examiner of the exam so you can pretty much guarantee that what the examiner is looking for is in this book. I know it can seem pricey but really for a great grade at AS it's worth every penny I'd hurry up and buy this as soon as possible.