Hendrik Hellige Books

Playful Type

By Robert Klanten, Hendrik Hellige

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Impressive

By Robert Klanten, Hendrik Hellige

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Today's graphic designers, illustrators, and typographers are rediscovering old printing techniques and handcrafts. The work collected in this book shows the many facets of the graphic design busi...

Ubersee

By Robert Klanten

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A life in illustration

By Anna Sinofzik, Robert Klanten, Hendrik Hellige

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"Multiple-page portraits of more than 20 outstanding talents who reveal the ins and outs of working in commercial, editorial, informational, lifestyle, storytelling, and typographical illustration"...

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.