Mark Unwin Books

IELTS Express Upper Intermediate Class Audio CDs
IELTS Express Upper Intermediate
IELTS Express Upper Intermediate Workbook 1st Ed
IELTS Upper Intermediate
IELTS Express Intermediate
Prince and the Pauper
Prince and the Pauper

By Mark Unwin

Average: 0.00, 0 Ratings

Read More
Tom Sawyer
Tom Sawyer

By Mark Unwin

Average: 0.00, 0 Ratings

Read More
IELTS express
IELTS express

By Richard Hallows

Average: 0.00, 0 Ratings

A preparation course for candidates studying for the International English Language Testing System examination (IELTS)

Read More
Adventures of Huckleberry Finn
IELTS Express Intermediate Pack

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.

Read More