Robert Squier Books

What Is the Story of Captain Picard?

By David Stabler Illustrated By Robert Squier

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Your favorite characters are now part of the Who HQ library! Climb aboard the starship USS Enterprise and learn how Jean-Luc Picard became one of the most beloved Starfleet members in the...

What Is the Story of Alice in Wonderland?

By Dana Meachen Rau Illustrated By Robert Squier

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Who HQ brings you the stories behind the most beloved characters of our time.Find out how Alice in Wonderland became a children's classic.Published in 1865 by British author Lewis Carroll, this fan...

What Is the Story of Alice in Wonderland?

By Dana Meachen Rau Illustrated By Robert Squier

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Uncle Jack Is a Carpenter Magic Door to Learning

By Robert Squier, Charnan Simon

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Max s Math Machine

By Robert Squier, Larry Dane Brimner

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Independence Day

By Robert Squier, Ann Heinrichs

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Uncle Jack Is a Carpenter

By Robert Squier, Charnan Simon

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Your Sensational Sense of Hearing

By Julia Vogel, Robert Squier

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Your Sensational Sense of Sight

By Julia Vogel, Robert Squier

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Your Sensational Sense of Smell

By Julia Vogel, Robert Squier

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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.