Frieder, David Books

Gre-Gmat Math Review: The Mathworks Program

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Developed by a respected math tutoring service, this targeted self-study course features an easy-to-follow format with clear and logical instructions, step-by-step solutions to hundreds of sample p...

Gre Gmat Math Review

By David Frieder, Frieder, David

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You'll get the winning edge you want with these features: Easy-to-follow format with clear, logical instruction In-depth review of all topics tested: Arithmetic, Algebra, Word Problems, Geometry...

Sat Math Workbook/Scholastic Assessment Test

By Arco Publishing, Brigitte Saunders, Mark Weinfeld, David Frieder, Frieder, David, Saunders, Brigitte, Weinfeld, Mark, Saunders, Brigitte. Mathematics Workbook For The SAT

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Contains three sample SAT math reasoning tests with explanations, coverage of all required math concepts, and test-taking strategies

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.