Robert Graysmith Books

Zodiac Unmasked

Average: 0.00, 0 Ratings

Robert Graysmith reveals the true identity of Zodiac—America's most elusive serial killer.Between December 1968 and October 1969 a hooded serial killer called Zodiac terrorized San Francisco. Claim...

The laughing gorilla

By Robert Graysmith

Average: 0.00, 0 Ratings

The Laughing Gorilla

By Robert Graysmith

Average: 0.00, 0 Ratings

During the 1920s, in more than a dozen cities, over four years, and across two continents, women were being butchered. Eyewitneses claim the perpetrator was a hulking Bible-carrying brute who lumbe...

The Sleeping Lady

By Robert Graysmith

Average: 0.00, 0 Ratings

Amerithrax: The Hunt for the Anthrax Killer

By Robert Graysmith

Average: 0.00, 0 Ratings

The Murder of Bob Crane: Who Killed the Star of Hogan's Heroes?

By Robert Graysmith

Average: 0.00, 0 Ratings

The Sleeping Lady

By Robert Graysmith

Average: 0.00, 0 Ratings

Zodiac UNABRIDGED

By Robert Graysmith

Average: 0.00, 0 Ratings

Zodiac

By Robert Graysmith

Average: 0.00, 0 Ratings

Zodiac

By Robert Graysmith

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.