Oxford Read and Imagine is a fiction series written for primary and pre-primary students. Young learners follow Rosie, Ben and Grandpa on their adventures and grow up with the characters as they read and learn. When Rosie and Alice found a painting in the attic, Alice's grandma gave it to a gallery to be studied. But why was the woman from the gallery on TV with Grandma Vera's painting? Would the police believe she stole it? And would Grandma ever get her painting back? CEFR A2/B1 Word count: 2,335
Various is the correct author for any book with multiple unknown authors, and is acceptable for books with multiple known authors, especially if not all are known or the list is very long (over 50).
If an editor is known, however, Various is not necessary. List the name of the editor as the primary author (with role "editor"). Contributing authors' names follow it.
Note: WorldCat is an excellent resource for finding author information and contents of anthologies.