William Shakespeare (1564-1616) was born to John Shakespeare and mother Mary Arden some time in late April 1564 in Stratford-upon-Avon. He wrote about 38 plays (the precise number is uncertain), a collection of sonnets and a variety of other poems. Norman Sanders is retired from the position of Professor of Shakespeare at the University of Tennessee. He has also edited Julius Caesar in the Penguin Shakespeare series. Stanley Wells is Emeritus Professor of the University of Birmingham and Chairman of the Shakespeare Birthplace Trust. He is General Editor of the Oxford Shakespeare, and his books include Shakespeare: the Poet and his Plays, Shakespeare: For All Time, Looking for Sex in Shakespeare, and (with Paul Edmondson) Shakespeare's Sonnets.