Sheldon Allan Shel Silverstein (September 25, 1930 – May 10, 1999), was an American poet, singer-songwriter, cartoonist, screenwriter, and author of children's books. He styled himself as Uncle Shelby in some works. Translated into more than 30 languages, his books have sold over 20 million copies.

Anna Laetitia Barbauld (20 June 1743 – 9 March 1825) was a prominent English poetess, essayist, literary critic, editor and children’s author. A “woman of letters” who published in multiple genres, Barbauld had a successful writing career at a time when female professional writers were rare. She was a noted teacher at the Palgrave Academy and an innovative children’s writer; her primers provided a model for pedagogy for more than a century. Her essays demonstrated that it was possible for a woman to be publicly engaged in politics, and other women authors such as Elizabeth Benger emulated her. Barbauld’s literary career spanned numerous periods in British literary history: her work promoted the values of both the Enlightenment and Sensibility, and her poetry was foundational to the development of British Romanticism. Barbauld was also a literary critic, and her anthology of 18th-century British novels helped establish the canon as known today.