If you can overlook the errors of spelling, punctuation, and grammar, and the repeated entries this is fun read, with lots of crazy facts. It has fewer than 4200 facts because many are repeated. The book is in need of proofreading. Still good value for the price, and I recommend it to fact lovers.
Very loose with the truth. E.g. Claim: "Great Britain voted George Washington its greatest enemy, [adding] What about Adolf Hitler?" Reality: "In an online survey of 8000 people ... only actually engaging British forces, specifically excluding Hitler"