Want to write? Then study mentor texts--the kinds of things you want to write. If you want to write about crafts for a magazine, then study how the magazine you want to write for includes them. If you want to write middle grade mysteries, then study how middle grade mystery writers write. And if you want to write for the educational market, study a series of educational market books.

If you're really interested in writing books for the educational market, you are supposed to create an introductor...