- J.K. Rowling lived in Porto from 1991 to 1993, while she was working as an English teacher.
- Rowling is said to have visited the Lello Bookstore on a regular basis during her time in Porto.
- Some fans believe that the Lello Bookstore inspired the staircase at Hogwarts School of Witchcraft and Wizardry.
- Others believe that the bookstore's overall atmosphere inspired Rowling's vision of Hogwarts.