Sieb Posthuma Books

Heks Gruizegok tovert alle boeken weg, maar prinses Tippie verzint een list zodat er weer verhalen voorgelezen kunnen worden. Prentenboek met tekst. Vanaf ca. 4 jaar.

Rintje rent het hardst

By Sieb Posthuma

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Bundel korte voorleesverhalen over Rintje, die met zijn twee beste hondenvriendjes Tobias en Henriette allerlei kleuteravonturen beleeft. Vanaf ca. 5 jaar.

Aadje Piraatje kan al rekenen

By Marjet Huiberts, Sieb Posthuma

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Pond Full of Ink

By David Colmer, Sieb Posthuma, Annie M. G. Schmidt

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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.