Barbara DeRubertis Books

Cuenta Con Pablo Count on Pablo

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Pablo demonstrates how good he is at counting while helping his grandmother, his "abuela," prepare to sell vegetables at the market.

Una coleccion para Kate

By Barbara Derubertis

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As she adds up the items in the collections that some of her classmates bring to school, Kate tries to come up with a collection of her own that has enough items for her to share.

Alexander Anteater s amazing act

By Barbara DeRubertis

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With help from his friends Anna and Albert, Alexander Anteater works on a truly amazing acrobatic act for the talent show at Alpha Betty's school.

Bobby Baboon s banana be bop

By Barbara DeRubertis

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Bobby Baboon brings bananas to give to his classmates at Alpha Betty's school, and, with the help of some friends, he figures out that he can share the extras.

Corky Cub s crazy caps

By Barbara DeRubertis

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Corky is sad when his best buddy moves away, so teacher Alpha Betty suggests a project that will help Corky make new friends.

Dilly Dog s dizzy dancing

By Barbara DeRubertis

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Teacher Alpha Betty demonstrates new ways of dancing to Dilly Dog so that Dilly can continue to dance without creating mishaps.

Eddie Elephant s exciting egg sitting

By Barbara DeRubertis

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Eddie Elephant loves to tell stories, which keeps him from getting bored when he is asked to help egg-sit for his neighbors, Elmer and Ernestine Emu.

Frances Frog s forever friend

By Barbara DeRubertis

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Frances Frog and Felicity Fox are best friends, but sometimes Frances's foolishness is no fun for Felicity.

Gertie Gorilla s glorious gift

By Barbara DeRubertis

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When Gertie Gorilla gets muddy on her way to Godfrey Goat's birthday party, her gazelle friends suggest she clean up in a nearby brook but worry what will happen to her grubby gift.

Hanna Hippo s horrible hiccups

By Barbara DeRubertis

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When Hanna Hippo gets hiccups on her way to enjoy some hot huckleberry muffins after school, her friends Homer Hog and Hilda Hen try to help.

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.