Dr. Seuss Enterprises — the publisher of the bestselling children’s books — announced Tuesday it was taking the titles, which include ‘If I Ran the Zoo’ and ‘The Cat’s Quizzer’, out of print.

The announcement sparked a bidding frenzy for the scrapped books on eBay. The leading bid for a first edition of ‘On Beyond Zebra!’ soared from US$14.99 on Monday to US$810 on Tuesday.

“eBay is currently sweeping our marketplace to remove these items,” a spokeswoman for the company told the Journal.

She added it would take “some time” for the company to review the listings of all its sellers.

The move comes as criticism grows in the United States over the way minority communities have been portrayed in many of the author’s books.

Seuss, born Theodor Seuss Geisel in Massachusetts in 1904, published more than 60 books during his lifetime, including some of the most popular children’s books of all time.

His most famous works include ‘The Cat in the Hat’, ‘Green Eggs and Ham’ and ‘How the Grinch Stole Christmas’. He died in 1991.