Shana McNally joined Costco in 2000 as the marketing writer and moved to corporate proofreader in 2008 – the company’s first. She proofs marketing communications, packaging, the employee magazine, employee training, publisher promotions and social media. In addition, she develops and maintains corporate style guides. Recently, she added writing the My Costco Services guide to her responsibilities. Previously, she worked at The Associated Press and SportsZone (the early version of ESPN.com).