The banner guide library
Everything you need for banners that perform – from standard sizes and design rules to the quirks of each channel.
Most banner campaigns do not fail on the idea – they fail on craft: the wrong size for the placement, too much copy for the space, a file above the network limit. These guides collect what holds up across thousands of automatically generated banners.
Where to start depends on your task. If you need to know which dimensions matter at all, begin with banner sizes. For layout questions – hierarchy, contrast, type sizes – the banner design guide is the place. And each channel has its own page, from classic banner ads to email banners.
Every guide stands on its own and links to its neighbours. Prefer looking over reading? The examples show complete banner sets generated from real websites.