This shit matters. (Photo by David Jones.)

From time to time a book merits its title. Published in 2010, Holy Shit: Managing Manure to Save Mankind may just be the No. 1 book on the No. 2 business. In it, Gene Logsdon manages to be both funny and educational as he advocates for overcoming our aversion to excrement for the sake of healthy soil.

According to Logsdon, we need manure and lots of it. He contends we should follow our nose for practical and elegant solutions to improving soil fertility, and turn waste into compost fit for crops and gardens.