Although I do not own this particular book in the series I own many others. They have been invaluable to me in taking my AS and A level exams. They are written with the requirements of the main A level exam boardss (EdExcel,OCR and AQA)in mind and as such they give you all you need to know. The layout of the book is also exemplarary. They have individual sections for each topic where they start off with an overview and then go into a lot of detail. The margins are used to explain key words, terms and events. I would describe these books as essential to achieving a good grade at A Level. I myself achieved a high A at AS and I don't think I could have done it without the Heinemman books. Even if you are not studying the British Empire you should definately check to see whether Heinemman have released a book on your subject. Chances are those geniuses probably have!