Petr Horacek Books

Who Is Sleeping?

By Petr Horacek Illustrated By Petr Horacek

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In a pair of bright lift-the-flap books full of animals, author-illustrator Petr Horácek gets little ones thinking with simple questions and easy concepts.Who is sleeping in the tree? Who is...

Beep Beep Piip piip

By Petr Horacek Illustrated By Petr Horacek

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Two shaped board books from Petr Horácek are now available in dual Spanish-English editions — perfect for little ones who love things that go.When a family piles into a bright yellow c...

Nezumichan no ouchi sagashi

By Petr Horacek

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Mouse finds a huge apple and decides that she really must take it inside. But her burrow is too small -- so she sets out in search of a new, bigger house.

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.