Tobi Tobias Books

The Quitting Deal

By Tobi Tobias, Trina Schart Hyman

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The ballerina cat

By Tobi Tobias

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Sylvie, a rambunctious kitten, becomes a celebrated dancer in the famous Catspaw Ballet.

Moving day

By Tobi Tobias

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A small girl is involved in the excitement, turmoil, and sadness of moving from one house to another and keeps her toy bear close for reassurance.

A Chinese paper umbrella, lost in the big city, passes through the hands of many people, including a cleaning matron, street gang, alcoholic vagrant, and piano teacher, before it gets home to its l...

The man who played accordion music

By Tobi Tobias

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A Hungarian man's accordion music disrupts the daily routine of the McGeorge family in the apartment next door.

Moving day

By Tobi Tobias

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A small girl is involved in the excitement, turmoil, and sadness of moving from one house to another and keeps her toy bear close for reassurance.

An umbrella named Umbrella

By Tobi Tobias

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The man who played accordion music

By Tobi Tobias

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A Hungarian man's accordion music disrupts the daily routine of the McGeorge family in the apartment next door.

A day off.

By Tobi Tobias

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Once in a while a youngster likes to be sick, but not too sick to do some enjoyable things.

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.