It basically comprises a bunch of advice, similar to the Book of Proverbs. A lot of it isn't terribly nice advice, focusing on how women are evil:
Some Christians have gotten a little bit carried away and claim that the book is extraordinarily prophetic and insightful and contains truths only discovered by scientists hundreds of years later. This includes advice on building in earthquake zones: "A wooden beam bonded firmly into a building will not be torn loose by an earthquake." (22:16) The text also affirms the virtues of drinking in moderation, which some scientists now appear to accept although it is still controversial: "Wine is like life to men, if you drink it in moderation." (31:27)