When friends ask author Michael Pollick what he does for a living, his stock answer is "Have you heard of the Internet. I wrote that." He's only half-joking, and the proof is in this eclectic reference book, Professor Mike's Low-Flow Fountain of Information. Compiled from previously published articles for various encyclopedic websites, subjects include everything from how to replace a toilet to the difference between distilled, purified, and spring water. You never know what you'll be reading next— it could be relationship advice, cooking tips, or just about anything else.