On this page there’s 6 highlights (view in Baymard Premium) outlining what Amazon are doing right and wrong.
(Tip: use the arrows above or on your keyboard to navigate all 866 account selection examples.)

The screenshot was taken on March 28, 2012 and depicts Amazon’s Account Selection. In total, we’ve reviewed 90 of Amazon’s page designs. To see them all, visit the full Amazon UX case study.