Articles referencing to this book: Anna Anderson, a.k.a. Anna Tchaikovski... a.k.a. Anastasia? The Missing Romanovs

Platnick does an admirable job of examining the history and evidence regarding sixteen different mysteries, ranging from historical events such as the dissappearance of Louis XVII of France to modern claims of the existence of the Yeti, hairy wildman of the Himalayas.
This range of topics means there should be something to catch everyone's interest. The book can be slow reading occasionally because of an almost overabundance of detail, but overall it's a good read and an informative source.