My boyfriend and I bought this book in the British Museum bookstore so we could keep the monarchs straight. For that purpose it is perfect. Each page is about the size of two credit cards, and each monarch gets two pages each- one page for a picture of him/her, and one page for a biography. The brevity of the biography obviously leads to inaccuracies in the interest of cramming it all into a single tiny page. In other words, I don't recommend using it to study for a history test, but if you want to put it in your backpack as you are touring London so you can say "Oookay, now Henry the VI was a [crummy] and weak king" as you stand over his tomb in St. George at Windsor and "Henry VII killed Richard the III, that bad guy from Shakespeare" as you stand next to Henry's tomb in Westminster Abby, it is absolutely perfect for that purpose. However, if you want a more thorough review (and loads of pictures, but less backpack friendly) of each monarch, I very much recommend Antonio Fraser's "The Lives of the Kings and Queens of England."