The Forever War by Joe Haldeman. It was my first book since I became serious about reading and writing.
Many - anything Dick Francis, anything Anne McCaffrey, Marion Zimmer-Bradley and Katherine Kurtz, anything Follett and Asimov, Moorcock can have that effect on me, as do some really good erotica and slash writers. A book I was absolutely unable to stop reading was Colleen MacCullough's "Tim." Guilty-pleasure-like such books are by Clavell and and Crichton. Stephen King - often. Recently and read in one sitting, Melvin Burgess' Doing It.
There are so many books I couldn't put down but unfortunately they have all blurred into one There was one book which is my favourite of all time and it is "Tomorrow all will be Beautiful" by Brigid Lowry. I have read it cover to cover so many times I know it word for word. It isn't really one story just a collection of short ones by her but each of them are amazing. Brigid is a wonderful writer!!!
Let the Right One in by John Ajvide Lindqvist. I first read it a couple of years ago when I was studying for entrance exams at the local library. I decided to take a break, walk around, check if some interesting novels were available... and found that one. I decided to use rest of my break to read the beginning, and... I ended up finishing it in one sitting, literally. Not bad, considering it was some 500 pages long.
Harry Potter, Pearl S Buck, The Good Earth and the Island by Victoria Hislop. in the past Catherine Cookson, Garden of lies, Virginia Andrews.
The Perks of Being a Wallflower by Stephen Chbosky. Amazing book. This was especially surprising for me, as it had been a log time since I read something without being able to stop. Definitely made me want to read more (or just start it over and read it again). I'd recommend it to anyone.
Siddhartha is the book I find unputdownable. I have read this book several times and each time I found something new and inspiring. First I am a Hindu by birth, in fact I do not consider myself a Hindu, I had come upon many interesting ideas that relate to Hinduism. It is a little bit about Buddhism and the writer had delved into some of the farthest realms of Buddhism that startled me beyond words and what is more I found the plot of the story and the way it advanced.
Inkheart by Cornelia Funke The Time Traveler's Wife by Audrey Niffenegger the HP series The Book Thief by Markus Zusak A Thousand Splendid Suns by Khaled Hosseini just to name a few...
I'm going to toss this one in there... The Memoirs of the Invisible Man by H.G. Wells. It was cool, and I thought it was actually pretty funny in parts. Something I wasn't expecting at all.