Thanks to our VP of E-Commerce, Katrina, we're all hooked on Tim Ash's guide to landing page optimization, aptly titled Landing Page Optimization: The Definitive Guide to Testing and Tuning for Conversions. You'll spot it on at least 4 desks in our office, used consistently as a reference tool. According to Patti (she read it cover to cover in one night!), it's a must-read for any company with a website.