I liked Hitchhiker's Guide to the Galaxy - so lolz.
Inkheart was awesome, but Inkspell I honestly don't think much of at all...
I really loved the His Dark Materials series - how the characters are so fearless and free, yet manage to stay out of trouble and hold their heads up high. The way it's described and the settings - the ideas of Daemons and the similarities and differences of all the worlds involved, that's all brilliant. I strongly recommend these books (Northern Lights, The Subtle Knife, The Amber Spyglass) by Philip Pullman.
The Sherlock Holmes book, 'Study in Scarlet' was an incredibly good read, even though it was written so long ago. For a couple of weeks after I read that, I was hunting for clues for just about anything, from finding where the cookie jar had been hidden to...finding where the cookie jar had been hidden. ^^"
A Wizard form Earthsea is also one of my absolute favourites; about a young man (Ged) who becomes a wizard and...well, that would be ruining the story, wouldn't it? Heh, Ged accidentally lets loose a dead spirit into the world, and it keeps following him. Many things happen in this book, and I'm only halfway through it!! I'll keep reading, and then I'll move onto the next book in the series.