Bonnie Worth

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About Bonnie Worth

Bonnie Worth is one of the pen names of Kate Klimo. For many years, Kate was Vice President and Publisher of Random House Children's Books, the one and only home of Dr. Seuss, aka Theodor Geisel. In addition to being a Random House best-selling author, he was also publisher and founder of Beginner Books, an imprint that boasts such Seuss-penned classics as The Cat in the Hat, Hop on Pop, and Green Eggs and Ham. One of the last projects Geisel worked on, in conjunction with NASA, was a non-fiction Beginner Book spin-off. Unfortunately, he died before he was able to launch the series. In her capacity as publisher, Kate picked up where Seuss left off.
With the 1999 publication of Oh, Say Can You Say Dinosaur? Kate launched The Cat in the Hat's Learning Library. Today, the series numbers more than two-dozen best-selling titles, half of which were written by Bonnie Worth. One of her last acts before stepping down as publisher from Random House, was to work with PBSKids to develop an animated television show with a natural science curriculum, based on the Learning Library. Now in its third season, The Cat in the Hat Knows a Lot About That! is a hit among young children and their lucky parents and teachers.
Kate also writes the occasional Step into Reading Book as Bonnie Worth. Under her own name, Kate wrote The Dragon Keepers and the Dog Diaries for middle-grade readers and The Centauriad for young adults. Her newest book The Enchanted Dress Shop has been optioned for the screen. She lives in New Paltz, New York, with her husband and two horses.

Tish Rabe

Dr. Seuss

Katie Kath

Gail Gibbons

Joe Mathieu

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Titles By Bonnie Worth

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Oh Say Can You Say Di-no-saur?: All About Dinosaurs (Cat in the Hat's Learning Library) Jun 18, 2019

by Bonnie Worth

( 9,118 )

$9.99

Journey through the fascinating world of dinosaurs with everyone's favorite Cat in the Hat in this positively prehistoric adventure! The Cat in the Hat's Learning Library is a nonfiction picture book series that introduces beginning readers ages 5-8 to important basic concepts.

Learn about how fossils are formed and found, and get an easy introduction to dinosaurs from the flying Archaeoptyerx to the spiky Ankylosaurus. (And not to fear–the Cat in the Hat will break the names down for easy pronunciation for kids and parents.) Perfect for readers who are crazy about dinosaurs (or even just dino-nuggets) and for any kid who loves learning and science.

Featuring beloved characters from Dr. Seuss's The Cat in the Hat, the Learning Library are unjacketed hardcover picture books that explore a range of nonfiction topics about the world we live in and include an index, glossary, and suggestions for further reading.

“Pretty much all the stuff you need to know is in Dr. Seuss.” –President Barack Obama

Other Formats: Hardcover , Paperback

Oh Say Can You Seed?: All About Flowering Plants (Cat in the Hat's Learning Library) Jun 18, 2019

by Bonnie Worth , Aristides Ruiz

( 516 )

$9.99

Get ready to bloom and learn all about flowers and plants with the Cat in the Hat--a perfect gift for aspiring gardeners on Earth Day and every day! The Cat in the Hat's Learning Library is a nonfiction picture book series that introduces beginning readers ages 5-8 to important basic concepts.

An easy and fun introduction to plant biology! With the able assistance of Thing 1 and Thing 2 - the Cat in the Hat explores the world of plants. Kids will learn about the various parts of plants, seeds, and flowers; basic photosynthesis and pollination; and seed dispersal.

Featuring beloved characters from Dr. Seuss's The Cat in the Hat, the Learning Library are unjacketed hardcover picture books that explore a range of nonfiction topics about the world we live in and include an index, glossary, and suggestions for further reading.

Other Formats: Hardcover , Paperback

Happy Pi Day to You! (Cat in the Hat's Learning Library) Feb 4, 2020

by Bonnie Worth , Aristides Ruiz , Joe Mathieu

( 175 )

$9.99

Join the Cat in the Hat as he explains how to measure circles and calculate pi in this perfect choice for Pi Day celebrations and nurturing a love of math and numbers!

The Cat in the Hat makes calculating pi—one of the most fascinating numbers in mathematics—as easy as pie! Using a piece of string and two sticks, the Cat first shows beginning readers how to draw a perfect circle. Then, using a can and a piece of ribbon, he shows how to measure a circle's circumference and diameter, and to use those measurements to calculate pi. Also included is information about the history of measurement and famous Pi Pioneers!

Written in simple rhyme, Happy Pi Day is a natural choice for celebrating Pi Day (held annually on March 14), and for nurturing a child's interest in math. Fans of the hit PBS show The Cat in the Hat Knows a Lot About That! will be delighted at this new addition to the Learning Library series.

Other Formats: Hardcover

Hark! A Shark!: All About Sharks (Cat in the Hat's Learning Library) Jun 18, 2019

by Bonnie Worth , Aristides Ruiz , Joe Mathieu

( 3,336 )

$9.99

Learn about sharks with everyone's favorite Cat in the Hat!

The Cat in the Hat dives deep in this fascinating exploration of the world of sharks. Learn about the different types of sharks, how we study them, and why they aren't so scary after all. Perfect for kids who love sharks and Dr. Seuss alike, and for any kid who loves learning and science.

The Cat in the Hat's Learning Library is a nonfiction, unjacketed hardcover series that introduces beginning readers ages 5-8 to important basic concepts. Featuring beloved characters from Dr. Seuss's The Cat in the Hat, the Learning Library titles explore a range of topics about the world we live in and include an index, glossary, and suggestions for further reading.

“Pretty much all the stuff you need to know is in Dr. Seuss.” –President Barack Obama

Other Formats: Hardcover

One Cent, Two Cents, Old Cent, New Cent: All About Money (Cat in the Hat's Learning Library) Aug 6, 2019

by Bonnie Worth , Aristides Ruiz

( 411 )

$9.99

THE CAT IN the Hat puts to rest any notion that money grows on trees in this super simple look at numismatics, the study of money and its history. Beginning with the ancient practice of bartering, the Cat explains various forms of money used in different cultures, from shells, feathers, leather, and jade to metal ingots to coins (including the smallest—the BB-like Indian fanam—and the largest—the 8-foot-wide, ship-sinking limestone ones from the Islands of Yap!), to the current king of currency, paper. Also included is a look at banking, from the use of temples as the first banks to the concept of gaining or paying interest, and a step-by-step guide to minting coins. A fascinating introduction is bound to change young reader’s appreciation for change!

Other Formats: Hardcover

Dog Diaries #1: Ginger Jan 8, 2013

by Kate Klimo , Tim Jessell

( 169 )

$7.99

Born in a puppy mill, Ginger the golden retriever looks back on her life and the various people who have "owned" her. Abruptly separated from her mother, littermates, and the wire cage that was her whole world, Ginger is shuttled from one harrowing situation to another until she finally escapes, living as an outlaw with a pack of wild dogs. But freedom doesn't feel so good once she becomes hungry and cold and sick. Will Ginger ever find a furever family to call her own? With realistic black-and-white illustrations by renowned illustrator Tim Jessel, and an appendix featuring information about puppy mills, breed rescue groups, animal shelters, choosing a pet, and the history of golden retrievers, dog-crazy early middle-grade readers will beg for more!

Other Formats: Library Binding , Paperback

Wish for a Fish: All About Sea Creatures (Cat in the Hat's Learning Library) Jun 18, 2019

by Bonnie Worth

( 562 )

$9.99

The Cat in the Hat, Sally, and Dick take an undersea voyage aboard the S.S. Undersea Glubber! Traveling down from the Sunny Zone to the Dark Zone to the Trench at the bottom, Captain Cat and his crew get up close and personal with the different life forms found at each level of the ocean. Along the way, they meet sharks, jellyfish, dolphins, manatees, whales, and sea cucumbers, to name just a few!

Other Formats: Hardcover

If I Ran the Rain Forest: All About Tropical Rain Forests (Cat in the Hat's Learning Library) Jun 18, 2019

by Bonnie Worth , Aristides Ruiz

( 214 )

$9.99

The Cat in the Hat takes Sally and Dick for an “umbrella-vator” ride through the understory, canopy, and emergent layers of a tropical rain forest, encountering a host of plants, animals, and native peoples along the way.

Other Formats: Hardcover , Paperback

Cows Can Moo! Can You?: All About Farms (Cat in the Hat's Learning Library) Aug 6, 2019

by Bonnie Worth

( 272 )

$9.99

A visit to a family farm with the Cat in the Hat!

Join the Cat in the Hat as he spends a day on the farm with Mr. and Mrs. Greenbean and their three little Greenbeans: Jean, Dean, and baby Irene! From dawn to dusk, kids will see cows being milked, chickens being fed, sheep being sheered, fields being tilled, fertilized, reaped, mowed, irrigated—and lots more!

Ideal for kids who love animals AND for kids who love machines (in other words, all kids), this is a perfect choice for families making their first visit to a farm or petting zoo, or for explaining where food comes from. Fans of the hit PBS show The Cat in the Hat Knows a Lot About That! will be delighted at this new—and long overdue—addition to the Learning Library series.

Other Formats: Hardcover

If I Ran the Horse Show: All About Horses (Cat in the Hat's Learning Library) Aug 6, 2019

by Bonnie Worth , Aristides Ruiz , Joe Mathieu

( 1,392 )

$9.99

Calling all young equestrians and Cat (in the Hat) fanciers! In this latest installment of the Cat in the Hat's Learning Library, the Cat introduces Sally and Nick—and beginning readers—to all things horsey. At his Super-Tremendous-Stupendous Horse Show, the Cat explains how horses and people have worked together since ancient times; the difference between fillies, foals, yearlings, mares, colts, dams, sires, and stallions; horse anatomy from nose to tail; the work of a farrier, Western vs English riding; and much, much more—including fun facts about 13 of the most popular horse breeds! Fans of the new PBS Kids preschool science show the Cat in the Hat Knows a Lot About That! (which is based on The Cat in the Hat's Learning Library) will whinny with glee over this new addition to the series!

Other Formats: Hardcover

Safari, So Good!: All About African Wildlife (Cat in the Hat's Learning Library) Dec 10, 2019

by Bonnie Worth , Aristides Ruiz , Joe Mathieu

( 456 )

$9.99

In this latest installment of the Cat in the Hat's Learning Library, the Cat takes Sally and Nick to Africa—where they meet some really big cats—and all sorts of other animals, too, including elephants, zebra, giraffe, hippos, warthogs, buffalo, baboons, side-striped jackals, spotted hyena, galagos, pythons, vipers, and six kinds of antelope! Young readers will learn how animals are either predators or prey, that elephants tend to favor one tusk over the other, how to tell the difference between a white and black rhino (both of which are grey!), that lion cubs are born covered with spots that soon disapear, and much, much more! Fans of the new PBS preschool science show The Cat in the Hat Knows a Lot About That! (which is based on The Cat in the Hat's Learning Library) won't want to miss this wild new addition to the series!

Other Formats: Hardcover , Paperback

Once upon a Mastodon: All About Prehistoric Mammals (Cat in the Hat's Learning Library) Dec 10, 2019

by Bonnie Worth

( 126 )

$9.99

How cool! The Cat and Co. time-travel to the Great Ice Age!

The Cat in the Hat visits with Ice Age mammals on a whirlwind tour of the Pleistocene! From ground sloths as big as elephants to bears as heavy as Volkswagens, the Cat introduces young readers to mastodons, mammoths, woolly rhinos, saber-toothed cats, giant horses, and lots more—including humans! In addition, young readers will learn basic facts about the Great Ice Age and early human life, the characteristics of mammals, and the study of fossils. Ideal for supporting the Common Core State Standards and a natural for fans of the hit PBS Kids show The Cat in the Hat Knows a Lot About That!, this is a great way to introduce beginning readers to science!

Other Formats: Hardcover

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