This year is turning out to be a great one for “Harry Potter” fans. J.K. Rowling has once again announced that fans will be getting even more stories from the wizarding world with her trio of “Pottermore Presents” e-books.

Much of the e-books will look familiar to Pottermore users. Most of the stories are taken from Rowling’s writing that’s already available on the free website. However, it won’t all be previously published material.

“‘Pottermore Presents’ is a series of bite-sized e-books that dig deep into the Harry Potter stories, with tidbits taken from Pottermore’s archives and original writing from J.K. Rowling,” the website revealed.

There will be three e-books: “Hogwarts: An Incomplete and Unreliable Guide,” “Short Stories from Hogwarts of Power, Political and Pesky Poltergeists” and “Short Stories from Hogwarts of Heroism, Hardship and Dangerous Hobbies.” Included in these e-books will be new material on a couple of Hogwarts’ professors.

In the “Power, Political and Pesky Poltergeists” collection, Horace Slughorn will be explored. The potions professor was only introduced in the sixth novel. Being introduced as a supporting character so close to the end means that readers didn’t get to know him very well, but Rowling is going to change that.

In the “Heroism, Hardship and Dangerous Hobbies” installment, there will also be a new piece on someone readers know and love: Minerva McGonagall. Rowling has previously explored her past on Pottermore, but this new piece will reveal what readers didn’t get to see in the books. While Harry and his friends were figuring out how to directly take out Voldemort, McGonagall was helping fight the second wizarding war in different ways.

The “Pottermore Presents” e-books are one of many ways Rowling has expanded the Wizarding World this year. Fans received an eighth story with the play “Harry Potter and the Cursed Child,” and they’ll explore the American wizarding world in the 1920s with “Fantastic Beasts and Where to Find Them,” which hits theaters Nov. 18. However, Potterheads shouldn’t expect to see Harry in any of the new material after “Cursed Child.”

“He goes on a very big journey during these two plays and then, yeah, I think we’re done. This is the next generation, you know,” Rowling told Reuters in July. “So, I’m thrilled to see it realized so beautifully but, no, Harry is done now.”

All three “Pottermore Presents” e-books will be available from digital retailers on Sept. 6.