- Dr. Seuss. If I Ran the Zoo. New York: Random House, 1950.
- Philip Bump. "If curtailing racist imagery in Dr. Seuss is ‘cancel culture,’ what, exactly, is your culture?." Washington Post. 2 March 2021. 16 July 2021. <https://www.washingtonpost.com/politics/2021/03/02/if-curtailing-racist-imagery-dr-seuss-is-cancel-culture-what-exactly-is-your-culture/>.
- Josh K. Elliott. "Six Dr. Seuss books will no longer be published due to racist content." Global News. 5 March 2021. 16 July 2021. <https://globalnews.ca/news/7671590/dr-seuss-books-racist/>.
- Mark Pratt. "6 Dr. Seuss books won’t be published for racist images." AP News. 2 March 2021. 16 July 2021. <https://apnews.com/article/dr-seuss-books-racist-images-d8ed18335c03319d72f443594c174513>.