Gruber Michael Books

The witch s boy

Average: 0.00, 0 Ratings

A grotesque foundling turns against the witch who sacrificed almost everything to raise him, when he becomes consumed by the desire for money and revenge against those who have hurt him; but he eve...

The good son

By Gruber Michael

Average: 0.00, 0 Ratings

Somewhere in Pakistan, Sonia Laghari and eight fellow members of a symposium on peace are being held captive by armed terrorists. Sonia, a deeply religious woman as well as a Jungian psychologist,...

The good son

By Gruber Michael

Average: 0.00, 0 Ratings

The good son

By Gruber Michael

Average: 0.00, 0 Ratings

Somewhere in Pakistan, Sonia Laghari and eight fellow members of a symposium on peace are being held captive by armed terrorists. Sonia, a deeply religious woman as well as a Jungian psychologist,...

The good son

By Gruber Michael

Average: 0.00, 0 Ratings

Somewhere in Pakistan, Sonia Laghari and eight fellow members of a symposium on peace are being held captive by armed terrorists. Sonia, a deeply religious woman as well as a Jungian psychologist,...

La nuit du jaguar

By Gruber Michael

Average: 0.00, 0 Ratings

Le livre de l air et des ombres

By Gruber Michael

Average: 0.00, 0 Ratings

Tout commence lorsqu'un professeur apporte à Jake Mishkin, avocat new-yorkais, des lettres anciennes dissimulées depuis plus de 400 ans par un maître espion du XVe siècle et spécialiste en cryptolo...

Nachtrituelen

By Gruber Michael

Average: 0.00, 0 Ratings

Een Amerikaanse archeologe, die de magisch-religieuze riten van een Afrikaanse stam heeft bestudeerd, probeert samen met een detective een seriemoordenaar op te sporen die rituele moorden pleegt in...

Tropic of Night

By Gruber Michael

Average: 0.00, 0 Ratings

Valley of Bones

By Gruber Michael

Average: 0.00, 0 Ratings

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.