Book series similar to Land of Stories
The 'School for Good and Evil' series could be considered similar. It has elements of magic, adventure, and it plays with the idea of good and evil, just like 'Land of Stories' does. The world - building in this series is also really interesting, with its own unique rules and settings. There are complex characters and an overarching plot that keeps you hooked throughout the series.
The 'Once Upon a Time' series is quite similar. It also takes classic fairy tales and gives them new twists. There are different characters from various fairy tales interacting in a shared universe.
The 'Percy Jackson and the Olympians' series, although not directly fairy - tale - based like 'Land of Stories', has a similar feel in terms of the adventure and the way it creates a whole new world. In Percy Jackson, it's the world of Greek mythology, with gods and monsters. The main character, Percy, goes on quests and has to face various challenges, much like the characters in 'Land of Stories' have their own adventures in the fairy - tale world.