Joanne Rocklin Books

I Say Shehechiyanu

By Joanne Rocklin

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Hai ke ai de tian zhu shu

By Joanne Rocklin

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Mr. Day's fourth-grade class has a contest, recycling bottles and cans so that they will have enough money to buy a guinea pig.

Yi xiang zi li shi sha

By Joanne Rocklin

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Jan sends her friend Nick email messages describing how she and her cousins learn about shapes as they try to assemble a present for their grandmother's birthday. Includes related activities.

Wu di zhi bu jian le

By Joanne Rocklin

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Liz the Whiz & Co. help a neighbor find her way to a birthday party by using their knowledge of place value.

Miao bie zai jiao wo chi le

By Joanne Rocklin

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Tom the cat tries to evenly divide the snacks he has baked for himself and two friends, but after gobbling up a few treats, Tom is faced with a new division problem. Includes division activities.

Heng dao di cang na li

By Joanne Rocklin

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Liz the Whiz and her younger brother use codes, a chart, and a map of the backyard that matches a clock face to solve Zack's mystery. Includes a section with related activities.

Sevgili Kendimin Bes Cani

By Joanne Rocklin

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Dear Baby

By Joanne Rocklin

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Magnate s Mail Order Bride

By Joanne Rocklin

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Magnate s Marriage Merger

By Joanne Rocklin

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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.