http://biography.yourdictionary.com/shel-silverstein http://www.famouspoetsandpoems.com/poets/shel_silverstein/biography "Shel Silverstein Facts." Shel Silverstein Facts. N.p., n.d. Web. 20 Sept. 2016. "Shel Silverstein Biography." Shel Silverstein Biography. N.p., n.d. Web. 20 Sept. 2016. http://www.scholastic.com/teachers/book/giraffe-and-half#cart/cleanup http://www.scholastic.com/teachers/book/giving-tree#cart/cleanup http://www.scholastic.com/teachers/book/falling#cart/cleanup http://www.scholastic.com/teachers/book/light-attic#cart/cleanup http://www.scholastic.com/teachers/book/where-sidewalk-ends#cart/cleanup http://www.slideshare.net/guest9f74b56/shel-silversteinppt-slideshow Silverstein, S. (n.d.). Where the sidewalk ends: The poems & drawings of Shel Silverstein. Silverstein, S. (1964). A giraffe and a half. Place of publication not identified: Harper & Row. Silverstein, S., & Silverstein, S. (1964). The giving tree. New York: Harper & Row. Silverstein, S. (1981). A light in the attic. New York, NY: Harper & Row. Silverstein, S. (1996). Falling up: Poems and drawings. New York, NY: HarperCollins.