When someone talks of evolution, there are people that automatically associate the evolution of men with the other primates. Questions like "Did humans really evolve from apes?" is constantly shouted in some parts of the world and the answer is simple: No, humans did not evolve from apes, humans are apes.
Well, the expression "Ape" is relative to all the individuals that are presently in the Superfamily Hominoidea, that contains two families: The Hylobatidae, or the family of the lesser apes, and the Hominidae, described as the great apes, where humans are included.
The correct observation is that humans and the other apes evolved from the same ancestor. This ancestor, would have been a primate, similar to many others still existing today, which individuals would have diverged, so that today many kinds of apes could exist.
As to the evolution of Man, it was first discussed by Darwin himself in his followup book "A Descent of Man" (1871), where he unfolded sexual selection.