Out of date--this was published in 1976--and totally subjective, this book is a compendium of useless information that is really fun to read in bits and pieces, over time. I've probably already forgot a bunch of what I read in here, but some of it was interesting enough to spark research on the internet--which they didn't even have back when this book came out, on some subjects I want to know more about. Brain candy, on the line of gummy bears--nothing like chocolate. This has been sitting in my house getting picked up at random for at least a year. Finally read the final entry--The Most Unusual Floor.