[astaunton]

Caveat: At the time of adding this comment there are 2 points for "12 Programming Languages" and 3 for "Data Science Starter", so they are the preferred options at present.

For the 12 languages if you are looking to create some revenue from this it could be seen as direct competition to "7 languages in 7 weeks" (https://pragprog.com/titles/btlang/seven-languages-in-seven-...). So you may need to expand on what your book would provide that extends / adds to the work done in this previous book (other than comparing 12 languages instead of 7).