Rosemary Varley has moved from working in retail to being a university lecturer. This book is mainly aimed at the undergraduate market and is suitable for students of retail. The aim is to provide an integrated look at all aspects of product management ranging from strategic planning to how products are dealt with a store level. As such, the book covers a lot of ground.
As an introductory text it is excellent, covering many different areas of retail - although products and how to manage them remain a central theme. It's more aimed at the academic market than for someone actually involved in retail. It is also fairly 'dry' to read, taking an fairly detached approach to explaining the different aspects of retail it covers. If you are looking for a 'broad brush' introduction to managing products in a retail chain, the book will give you a good grounding. (Just don't expect any light hearted anecdotes...)