Dr. Seuss’ never-before-published book, “What Pet Should I Get?” is seen on display on the day it is released for sale at the Books and Books store on July 28, 2015 in Coral Gables, United States.Joe Raedle | Getty ImagesBooks by Dr. Seuss have flooded Amazon’s U.S. bestseller list after it was announced that six of the author’s publications were being pulled over racist imagery. “The Cat in the Hat” is currently the bestselling book on Amazon’s U.S. store, closely followed by “One Fish Two Fish Red Fish Blue Fish” and “Green Eggs and Ham,” along with several other titles by the late Theodor Seuss Geisel. In total, 15 Dr. Seuss publications were in Amazon’s top 20 list on Friday morning. “Green Eggs and Ham” and “The Cat in the Hat” also appeared in Amazon Canada’s top 10 bestselling books list. This comes after Dr. Seuss Enterprises, the business running the late author’s estate, said Tuesday it made the decision last year to cease publication and licensing of six of his books: “And to Think That I Saw It on Mulberry Street,” “If I Ran the Zoo,” “McElligot’s Pool,” “On Beyond Zebra!,” “Scrambled Eggs Super!” and “The Cat’s Quizzer.” “These books portray people in ways that are hurtful and wrong,” Dr. Seuss Enterprises said in the statement, with some of the author’s books having faced criticism in recent years over racist imagery. The announcement came on Read Across America Day on Tuesday, which would have been Geisel’s 117th birthday and has been associated with the author. President Joe Biden left any mention of Dr. Seuss out of his Read Across America Day proclamation on Monday, signaling a further distancing from the author. Former Presidents Donald Trump and Barack Obama mentioned Dr. Seuss in their previous speeches. After rumors of a ban on Dr. Seuss books, the school district of Loudoun County, Virginia, issued a statement last weekend to clarify that it hadn’t done so but had provided “guidance to schools during the past couple of years to not connect Read Across America Day exclusively with Dr. Seuss’ birthday.” “Research in recent years has revealed strong racial undertones in many books written/illustrated by Dr. Seuss,” the statement said.