Carol Nicklaus Books

Sometimes I share

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A young girl describes how she shares with her younger brother--most of the time. Includes word stickers and suggested activities.

The good day bunnies

By Jean Little, Harriet Margolin, Carol Nicklaus

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Bonnie, Becky, and Bumper Bunny experience some exciting changes when they move with their parents into a new house.

Tooth Day

By Harriet Margolin

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Becky Bunny is jealous when her twin brother Bumper loses his first tooth before she does.

Big Bird Gets Lost

By Patricia Thackray, Carol Nicklaus

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Big Bird loses his way while shopping for bird seed for his nest-warming party. The reader can experience some of the fragrances Big Bird encounters on his trip by scratching and sniffing treated p...

Grover's Own Alphabet

By Carol Nicklaus

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Hop Right On

By Bill Gordh

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Crocodile likes to play tricks on three unsuspecting frogs.

Want a ride?

By Bill Gordh

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A series of smaller and smaller animals play tricks on each other but it is ant, the very smallest animal, that plays the best trick of all.

Grover and the Package

By Golden Books

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Moving Day

By Harriet Margolin, Carol Nicklaus

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Shopping Day

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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.