Who is Shakespeare?
William Shakespeare (1564 - 1616) is considered by many to be the finest English language playwright and poet of all time. He wrote 38 plays, which have been translated into every major language and which are still performed more often than those of any other author. Shakespeare also wrote 154 sonnets, which are poems with a very strict structure and rhythm.
Shakespeare's plays include comedies, histories of English kings (Richard III, Henry IV, Henry V, Henry VI, etc.) and tragedies. Among the most famous are Macbeth, Romeo and Juliet, A Midsummer Night's Dream and King Lear.
To this day, few actors are considered to be at the top of their professions unless they have done Shakespeare at some point in their careers.
You can find extensive information about Shakespeare and his work here at enotes.