I have a list of books I read over and over again. I'm the pickiest reader in the world. People will say to me "Oh, you liked that? You would LOVE this." and I hate it. I don't even always like the same authors.
Outside of Harry Potter, I like:
Anne of Green Gables
Anne of Avonlea
Anne of the Island
(skip over Anne of Windy Poplars, it's useless)
Anne's House of Dreams
Anne of Ingleside
Rainbow Valley
Rilla of Ingleside
The Left Behind series (keep reading through the third through sixth books, they get better again)
Anne Frank: The Diary of a Young Girl
Anne Frank Remembered (less about Anne, more about Miep)
Sophie's Heart (Christian romance, it's actually one of the few good ones)
the Lancaster County trilogy by Beverly Lewis
Daisy Fay and the Miracle Man
Fried Green Tomatoes at the Whistle Stop Cafe
The Princess Bride (way better than the movie even)
To Kill a Mockingbird
Animal Farm
I've gotton so I can get through all these, plus the Harry Potter books, in about six weeks flat
I like to read.