Sometimes words aren't the best way to get across an idea, or maybe you need to capture a visual idea right when it happens. This bleedproof paper is perfect for that and made specifically for handling heavy markers like Sharpies.
I get asked all the time how someone can learn design. Dan Roam's book is a great place to start! It's not exactly a design book but it's about overall visual skills and makes the simple art of sketching approachable. Even more importantly, it'll open your eyes to the power of drawing skills to get across ideas in general, not just to tackle design challenges.