Topic
A practical, prioritised guide to raising your YouTube click-through rate — diagnose whether the title or thumbnail is the problem, then fix it with worked before-and-after examples.
The current YouTube thumbnail size requirements (resolution, aspect ratio, file limits) plus design rules that still work when your thumbnail is the size of a fingernail.
A step-by-step guide to YouTube's Test & Compare — what it tests, why it optimises for watch time, how to design variants that teach you something, and what to do with inconclusive results.
How much text to put on a YouTube thumbnail, what it should say so it doesn't repeat your title, how big it needs to be, and when the best choice is no text at all.
