Without the book, scholars say, plays including “Macbeth,” “The Tempest” and “Twelfth Night” might have been lost.

A set of four Shakespeare folios estimated to be worth more than £3.5 million ($4.7 million) will go on sale in London next ...

The First Folio, published about seven years after Shakespeare’s death ... as a single lot was in New York in 1989. The set to be sold by Sotheby’s on May 23, with an estimate of £3.5 ...

The set to be sold by Sotheby's on May 23 ... to acquire a complete set," it added. The First Folio was published about seven years after Shakespeare's death and contains thirty-six plays ...

The set to be sold by Sotheby’s on May ... to acquire a complete set,” it added. The First Folio was published about seven years after Shakespeare’s death and contains thirty-six plays ...