I know that the books are no longer new but there are still ways that Harry Potter can help your English study. You can learn new words and get familiar with different styles of English.
A lot of students have difficulties using -ed and -ing adjectives. These can help you. -ed The Pointer Sisters – I’m So Excited The Kinks – So Tired -ing Amii Stewart – Knock On Wood (“The way you love me it’s frightening”) Pet Shop Boys – Being Boring