It's possible you meant:
* Louis Sachar: This is a well-known children's author, famous for books like "Holes" and "Sideways Stories from Wayside School." He has written numerous books, including novels, short stories, and picture books.
* Sachar is a surname, and there could be other authors with this name, though less famous than Louis Sachar.
If you can provide more context, such as the title of a book or the genre, I might be able to help you find the author you are looking for.