Sophia Amoruso, the founder and executive chairman of Nasty Gal, has joined Marie Claire as a contributing editor, WWD writes. In this role Amoruso will write a regular column, contributing career advice and answering readers’ questions in the magazine’s @work section. In addition to founding Nasty Gal, which debuted selling vintage clothing on eBay in 2006, Amoruso wrote a bestselling book titled #GIRLBOSS.