Science writer Ed Yong discusses his new book, 'I Contain Multitudes: The Microbes Within Us and a Grander View of Life.'

"So many health problems that we think of as individual have to do with microbes," he tells PW Radio. "Culturally, we have come to associate microbes with death, disease, dirt."

He adds, "The vast majority of microbes are benign or beneficial to us."

Then, Publishes Weekly contributing editor Clare Swanson explores how regional cookbook authors become national celebrities.