Author here - it&#x27;s just 20 videos broken apart into each topic so when you need to come back to reference something, it&#x27;s quick.<p>Is flexbox hard to learn? Yes, but it&#x27;s because it&#x27;s such a powerful layout tool. There are tons of gripes about Flexbox, but I&#x27;ve found that if you just put in a few hours to learn it, you are going to be way ahead in your CSS and layout game.<p>We haven&#x27;t had to learn anything hard in CSS for years and now it&#x27;s time. Hunker down and get at it!