Youtube beauty and fashion vlogging is no joke.  crazy

It's no joke, but I had not heard of Zoe Sugg's book till now.

She may not write about wizards and Quidditch, but 24-year-old Zoe Sugg, better known as Zoella, is on track to become the most financially successful British writer since J.K. Rowling.

Sugg, who became a viral video star thanks to her beauty and fashion videos on YouTube, just published her first novel, Girl Online. The book flew off the shelves, selling more copies it its first week than any other debut novel in the UK on record. That’s right: She eclipsed the first week sales of Harry Potter. And she’s not even 25 yet. That’s a big deal. Girl Online is now the fastest-selling British book of 2014.

The book is about a high school girl named Penny, who blogs about her personal life and feelings under the alias Girl Online (obvs), and meets a dashing musician named Noah after her family moves to New York. Basically, it’s being called a YA Notting Hill. Sugg has already nabbed a deal for a sequel.

Sugg is famous in the U.K. not just for her incredibly popular videos, where she also addresses issues like body image and anxiety disorders, but also for her wholesome image. She’s open about not doing drugs or drinking alcohol, which has gained wide approval—especially from her fans’ parents.