This year marks the third year of O.W.L.s readathon which is hosted on BookTube by G from Book Roast. It’s a month long Harry Potter themed readathon where each for each book you read, you pass one of your O.W.L exams. To pass the readathon, you will have to get your OWL in 2 subjects. This will get you at the Acceptable level. Six books will get you an Exceeded Expectations, where 9 will get you an Outstanding.