The Worst Witch (2017 TV series)
The Worst Witch is a British-German fantasy children's television series about a group of young witches at a school for magic. It stars Bella Ramsey and is based on "The Worst Witch" books by Jill Murphy (published 1974–2018). It is the fifth adaptation of The Worst Witch series after the 1986 television film, the 1998 television series, the 2001 television spin-off and the 2005 television spin-off.
Witch World
Witch World is a speculative fiction project of American writer Andre Norton, inaugurated by her 1963 novel "Witch World" and continuing more than four decades. Beginning in the mid-1980s, when she was about 75 years old, Norton recruited other writers to the project, and some books were published only after her death in 2005. The Witch World setting is one planet in a parallel universe where magic long ago superseded science; early in the fictional history it is performed exclusively by women. The series began as a hybrid of science fiction and sword and sorcery but for the most part it combines the latter with high fantasy. 
Witch World begins with what is now called the Estcarp cycle. These describe the adventures of Simon Tregarth from Earth, his witch wife Jaelithe, and their three children Kyllan, Kemoc and Kaththea.