Mark N. Weinfeld Books

Mathematics Workbook For The SAT

By Brigitte Saunders, David Frieder, Mark N. Weinfeld

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Peterson'S 2001 Sat II Success: Math Ic And IIC

By Mark Weinfeld, Peterson'S, Lalit A. Ahuja, David Alan Miller, Mark N. Weinfeld

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In one complete training package SAT II Success combines solid review and supportive test-taking techniques to ensure high scores on the two SAT II tests in mathematics. With Peterson's five-step p...

SAT II Success MATH 1C And 2C 2002

By Peterson'S, Mark N. Weinfeld

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Provides a diagnostic pretest, flexible study plans, test-taking strategies, and four full-length practice tests.

Test Yourself: Trigonometry

By Mark Weinfeld, Mark N. Weinfeld, Contributing Editors, Carl E. Langenhop, Tony Julianelle, Charles M. Jones

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If you are currently taking a trigonometry course, this book is intended to serve as a supplement to whatever textbook you may be using. On the other hand, if your goal is to review topics you may...

Act Math Flash: Proven Techniques For Building Math Power For The ACT

By Mark N. Weinfeld

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Using a similar format to the highly successful Flash series for the SAT, ACT Math Flash walks students through two full-length ACT math tests and supplies thoroughly explained solutions to problem...

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.