The Golden Compass Series: Audiobooks
Philip Pullman's His Dark Materials trilogy (The Golden Compass, The Subtle Knife, and The Amber Spyglass) follows the story of Lyra Belacqua, the secrets surrounding her birth and future, and travel between the worlds.
With the recent film and a revival of the controversy that has always surrounded the Golden Compass series, these books are once more in the public eye. I've been told that even people who like them find the books difficult, but I throughly enjoyed listening to them on audio. This is possibly because they're performed by a full cast complete with sound effects and narration from Philip Pullman himself, making the whole experience more like an old fashioned radio drama than your average audio book. I highly recommend the entire series.