Clyde Robert Bulla Books

A poor, friendless English boy, shipped to America as an indentured servant in the early eighteenth century, runs away from a cruel master and dreams of building a house of his own.

The Paint Brush Kid

By Clyde Robert Bulla

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In the sequel to The Chalk Box Kid, Gregory’s friend Uncle Pancho is in trouble. The city wants to build a highway right where his house is. They will have to tear it down! Then Gregory has a...

WHITE BIRD

By Clyde Robert Bulla

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A lonely boy is found and reared by a hermit in the wilderness of the Tennessee mountains in the 1880s.

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.