This tells the stories of the six queens of England: Mary I, Elizabeth, Mary II, Anne, Victoria, and Elizabeth II. Six queens doesn't seem a lot for 1000 years of monarchy!
It's detailed and informative but Waller keeps it fairly concise.
I wish there had been an overview of the period between Anne and Victoria because it's quite a jump between them and it's difficult to understand the context.
This book is a great starting off point for more in depth research into the women's lives.