High quality pedagogical book for all teenagers or curious to know more about this phenomenon adults astrophysics famous but disregarded on the bottom. In a few short chapters, the author succeeds the feat to provide us the necessary bases gravitation (classical, but also in terms of relativity) before you answer any questions that may arise on this "object" fascinating and disquieting.
For those wishing to improve their knowledge, I would recommend for example the works of JP Luminet (Black Holes) and S Hawkings (Black Holes and babies universe).
