Changes are inevitable when adapting books for the screen, and although Netflix’s Lockwood & Co. is remarkably faithful to its source material, the show did make some big changes to the original story. The Lockwood & Co. adaptation is based on the book series by Jonathan Stroud and follows the titular ghost fighting agency, which is comprised of Anthony Lockwood, George Karim, and Lucy Carlyle. As a smaller agency, Lockwood & Co. has plenty of run-ins with other agencies, leading them to face off against more than just specters and the difficulty of keeping their start-up afloat.

https://screenrant.com/lockwood-co-netflix-original-book-changes-differences/