Todor Hristov Books

Horror and espionage collide in the most bone-chilling Stranger Things comics collection yet. When a leading Soviet scientist is abducted to work on a top-secret project, he comes face-to-face...

Stranger Things: The Voyage (Graphic Novel)

By Written By Michael Moreci, Illustrated By Todor Hristov With Lettering By Nate Piekos, Coloring By Francesco Segala

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In this new Stranger Things story arc, the Demogorgon is a long way from Hawkins, Indiana and a Russian scientist is desperately trying to get their quarry home aboard an ocean freighter.Captain Ja...

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.