  These lecture notes are an elementary and pedagogical introduction to the
black hole evaporation, based on a lecture given by the author at the Ninth
Modave Summer School in Mathematical Physics and are intended for PhD students.
First, quantum field theory in curved spacetime is studied and tools needed for
the remaining of the course are introduced. Then, quantum field theory in
Rindler spacetime in 1+1 dimensions and in the spacetime of a spherically
collapsing star are considered, leading to Unruh and Hawking effects,
respectively. Finally, some consequences such as thermodynamics of black holes
and information loss paradox are discussed.
