Dr. Seuss' most popular books

Updated 6:40 AM ET, Thu March 3, 2016
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"What Pet Should I Get?", the first new, original book by Dr. Seuss in 25 years, was published in July 2015. Its first printing was increased from 500,000 to 1 million. The author's most popular books serve as graduation gifts, read-alouds for children, parody fodder for politicians and inspiration for big Hollywood films. courtesy Random House
Dr. Seuss' "Oh, The Places You'll Go!" debuted in 1990 and is author and illustrator Theodor Geisel's top-selling book. From Random House
Characters created by Geisel and "Oh, The Places You'll Go!" have led to companion books and new editions. First lady Michelle Obama reads a Dr. Seuss-inspired work "Oh, the Things You Can Do That Are Good For You" by Tish Rabe, to students visiting the White House in January 2015. Jim Watson/AFP/Getty Images
Dr. Seuss' "The Cat in the Hat" was published in 1957. Most of his books remain in print and sell briskly a quarter-century after his death. From Random House
"The Cat in the Hat" was made into a film in 2003. The movie, starring Mike Myers as the titular feline, got poor reviews. From Universal Pictures
Dr. Seuss' "Green Eggs and Ham" was published in 1960. From Random House
Conservative pundit and former vice presidential candidate Sarah Palin read a parody version of "Green Eggs and Ham" during the Conservative Political Action Conference in 2014. T.J. Kirkpatrick/Getty Images
Dr. Seuss' "The Lorax" debuted in 1971. From Random House
A film version of "The Lorax" was released in 2012. From Universal Pictures
Dr. Seuss' "Fox in Socks" was published in 1965. From Random House
"One Fish, Two Fish, Red Fish, Blue Fish" was published in 1960. From Random House
"Horton Hatches the Egg" was published in 1940. From Random House
"Horton Hears a Who!" was published in 1954. A film version came out in 2008. From Random House
Dr. Seuss' "How the Grinch Stole Christmas!" was published in 1957. An animated TV special appeared in 1966, and a film, starring Jim Carrey, was released in 2000. From Random House