When capturing notes on lined paper, we write sentences that stretch across the entire width of the page and continue onto the next line. But in sketchnoting we’re going to switch up how we capture information and use a technique called “blocking”.
When you block your content, you write in imaginary boxes (or blocks) instead of long horizontal lines. This way, you end up with smaller, bite-sized bits of information that leave you with plenty of space to put stuff around them. This is a good place to remember the idea of breathing space from earlier—don’t cram your blocks too close together!

I hope that helps!