The Wizard's Field Guide is granted to the player character by the staff of Hogwarts in Hogwarts Legacy. The book is on loan from the Ministry of Magic with the intention that this book will allow you to catch up to the other students. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀