What are vanishing points, horizon lines, and convergence lines in perspective drawings?

Question

Also Why do artists use perspective drawing in their work?
and what is an artist that uses perspective drawing in their work?

Answer 1

Artists wanted to represent the 3 dimension; Giotto was one of the first painters including perspective.
The are several ways of depicting it (proportion, atmospheric perspective) but linear perspective it was develop to achieve it: the vanishing point is the one where all lines converge