Laura Ingalls Wilder’s Little House on the Prairie series. I must have read them all half a dozen times as a kid.
Lucy Maude Montgomery’s Anne of Green Gables series. Not only do I know the movies by heart (which only vaguely resemble the books) but I’ve read the books over and over.
Barbara Park's Junie B. Jones. I know this is intended for new readers, but the character is hilarious. I could read this stuff to my nieces all day.
Jane Austen. I own all her completed novels, and again, have read them all multiple times. They take a little time to get into, but the characters are so 3-dimensional and ridiculous you have to love them. Or at least, I have to.
JK Rowling. So Harry Potter wasn’t around when I first started writing, nevermind when I grew up, but I still love her series.
I admit, I love Victorian-Era writers, Oscar Wilde’s The Importance of being Ernest is one of the most hilarious plays I’ve ever seen or read. I also love novels by The Bronte Sisters, and though Charles Dickens takes even longer to get into than Jane Austen, I love his character sketches and am working my way through his works as well.
As for more contemporary works...these are a few of the most recent books I’ve bought, loved and will read again:
I recently discovered Stephanie Black's mystery/suspense books. She's won awards for best mystery/suspense book by an LDS author for the past two years running. Most recently for Methods of Madness which I thoroughly enjoyed.
Also high on that list is Traci Hunter Abramson, whom I've been hearing great things about for a while, but recenlty picked up her book "Lockdown."
Just recently I've run across Inspirational romantic suspense author Dee Henderson's stories on audio book and have been enjoying them a lot! you can check out the book blurbs and first chapters to her books on her website.