Daniel Flage Ph.D. Books

Understanding Logic

By Daniel Flage, Daniel E. Flage, Daniel Flage Ph.D.

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designed To Be A More Accessible For Courses In Introductory Logic, Elementary Symbolic Logic, And Critical Thinking.this Comprehensive Introduction To Logic Provides A System Of Natural Deduction,...

Student Study Guide

By Daniel E. Flage, Daniel Flage Ph.D.

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The Art Of Questioning: An Introduction To Critical Thinking

By Daniel E. Flage, Daniel Flage, Daniel Flage Ph.D.

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With a systematic approach to critical thinking, this volume begins with issues concerning words, examines techniques for evaluating explanations and arguments, and concludes by applying all the sk...

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.