>you should read Guns, Germs, and Steel by Jared Diamond.
That book has some many errors in it I actually suggest you don't read it.
unless you plan to read a dozen academic books about a variety of topics, i dont really think there is a better option for a popular audience that will answer the question
"why were Eurasians able to so easily take over the Americas" than this book.
This book came up so many times in school, always as some way to say Eurasians never had any inherent advantages. It's not that I think they do, it's just that I'm wary of people trying to reach a conclusion only because it's politically correct.