Bob Roll Books

The Tour De France Companion
The Tour de France companion 2005
Pedros Simple Trailside Repair Guide
Bobke (boob-ka)
Bobke (boob-ka)

By Bob Roll

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Bobke II
Bobke II

By Bob Roll

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Bobke II
Bobke II

By Dan Koeppel, Bob Roll

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Tour De France 8-copy Counter Display
Tour De France 8-copy Counter Display

By Bob Roll

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We all know about Lance Armstrong, who this summer made history by being the first rider ever to win a sixth Tour de France. But what about the peloton and the role it plays in supporting the lead...

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Related Articles from our Blog

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.

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