Ah, those categories are a pain. Too much choice. Apparently, you can email to request further categories.
You might struggle with a notebook, unless it's super specific/niche. Funnily enough, my only sales have been for books with specific uses for a niche topic.
You might struggle with a notebook, unless it's super specific/niche. Funnily enough, my only sales have been for books with specific uses for a niche topic.