Polly Curren Books

The fire fighters' counting book

Average: 0.00, 0 Ratings

As the fire fighters at the firehouse maintain their equipment, do other chores, and fight a fire, the reader may learn the numbers from one to ten.

The fire fighters' counting book

By Polly Curren

Average: 0.00, 0 Ratings

As the fire fighters at the firehouse maintain their equipment, do other chores, and fight a fire, the reader may learn the numbers from one to ten.

I know a plumber

By Polly Curren

Average: 0.00, 0 Ratings

Discusses the network of pipes and valves in a plumbing system carrying water from reservoirs to homes and sewage from homes to treatment plants.

I know an electrician

By Polly Curren

Average: 0.00, 0 Ratings

A young girl learns how electricity is supplied to her apartment from a power station.

I know a plumber

By Polly Curren

Average: 0.00, 0 Ratings

Discusses the network of pipes and valves in a plumbing system carrying water from reservoirs to homes and sewage from homes to treatment plants.

I know an electrician

By Polly Curren

Average: 0.00, 0 Ratings

A young girl learns how electricity is supplied to her apartment from a power station.

World builds the bridge.

By Erich Holle, Polly Curren

Average: 0.00, 0 Ratings

An easy-to-read history of bridges showing the progression from logs used as foot trestles to the suspension bridges of today.

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.