Mock tells readers what scientists have discovered about the disturbing side of family conflice in the natural world. He offers a rare perspective on the family as testing ground for the evolutionary limits of selfishness.

As well as taking in the well-known titles that have helped shape the world in which we live, The Secret Library brings to light more neglected items among the bookshelves of the world.

Among the most enduring poetry of all time, William Shakespeare’s 154 sonnets address such eternal themes as love, beauty, honesty, and the passage of time. Written primarily in four-line stanzas and iambic pentameter, Shakespeare’s sonnets are now recognized as marking the beginning of modern love poetry. The sonnets have been translated into all major written languages and are frequently used at romantic celebrations. Known as “The Bard of Avon,” William Shakespeare is arguably the greatest English-language writer known. Enormously popular during his life, Shakespeare’s works continue to resonate more than three centuries after his death, as has his influence on theatre and literature. Shakespeare’s innovative use of character, language, and experimentation with romance as tragedy served as a foundation for later playwrights and dramatists, and some of his most famous lines of dialogue have become part of everyday speech. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library.