Stephen Hawking's "Black Holes" is a tiny book that is very rich with information. Complicated physics is explained in simple words and even illustrated!
I absolutely loved this humorous scientific book that taught me abought the black holes, entropy, event horizon and singularities. I was amazed to learn that things gulped up by a black hole can come back as holograms and that it can be a pathway to some other universe.This indeed made me more interested in physics and astronomy!