Luckily, many free, open ... when drawing. There's also a feature to create custom comic panels and adjust their sizes into smaller rectangles and other shapes for an authentic book-like feel.

Remixes by: Access Smithsonian, Amazon Web Services-Sumerian, Amy Karle, An Open Book Foundation, AstroNuts, Autodesk Tinkercad, Cesium, Chris Funk & N M Bodecker Foundation, Creative Commons, Duke ...