Uncharted: A Rediscovered History of Voyages to the Americas Before Columbus by Tim Wallace-Murphy and James Martin
I've come across similar information before, so the contents of the book isn't entirely new to me. If the evidence in this book (and others) is accurate, everyone from the Japanese, Chinese, Celts, Vikings, Venetians, Greeks, Romans, Egyptians, Phoenicians (and probably a whole bunch more) visited the American continents for trade and exploration before Columbus ever set foot on a ship. "Uncharted" provides food for thought and information that needs to be researched. I did, however, find the writing clunky and uneven, with some topics being given more page time (the Earl St. Clair/Zeno expeditions) and detail than others (i.e. everything else). I would have loved to have learned more about the exchange of plants, animals and microbes, which gets a brief mention. A look at comparative population genetics would also have been interesting. So, interesting contents that provide food for thought and further research, but the book really could have used an editor, not to mention some extra material/ details and photographs/illustrations.