Dear [Friend's Name],
I hope you are doing well. Thank you for your letter. I usually read books in the evening or during the weekends when I have some free time. I have three Literature lessons every week, and I really enjoy them. Yes, our school library is quite big and has a wide range of books to choose from. Thank you for asking, and I appreciate your interest in my reading habits.
Take care and keep reading!
Best regards, [Your Name]