Are you a creative person with drawing skills? If so, you could develop your own drawing or colouring in books to sell online, on amazon and at markets.
Colouring in and drawing books can be targeted towards adults or children. Recently there was a trend in adult colouring in books which saw them grow in popularity and children’s colouring in and drawing books have always been popular.
There are different types and genres of colouring in and drawing books that you could create. Like I mentioned above there are adult colouring in and drawing books. These books can contain lewd content, but not always. Adult colouring in and drawing books often contain content that is more mature and uninteresting for younger generations.
Different types of books you could create include themed colouring in or drawing books for children (dogs, flowers, characters), licensed content (popular children’s tv shows etc), How to draw books, finish this drawing books, dot to dots, adult drawing and colouring in books containing lewd content, horror or gore themed books not suitable for children, non-lewd adult content books, adult licensed colouring in and drawing books, and the list goes on.
One example I found really cool, was a drawing book that teaches people to paint Japanese kanji authentically. Each page has a faint image of the kanji and you paint over it to match what is there. I am sure there are lots of unique examples out there that I have not seen and mentioned. Let me know in the comments if you have seen a unique example you would like to share with us.