Daniel Lachance Books

CompTIA Cloud Essentials Certification Study Guide Second Edition Exam CLO 002

By Daniel Lachance

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CompTIA Security Certification Bundle Third Edition Exam SY0 501

By Glen E. Clarke, Daniel Lachance

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CompTIA Security Certification Practice Exams Fourth Edition Exam SY0 601

By Glen E. Clarke, Daniel Lachance

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CompTIA Security Certification Bundle Fourth Edition Exam SY0 601

By Glen E. Clarke, Daniel Lachance

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CompTIA cloud certification practice exams Exam CV0 002

By Daniel Lachance

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"Prepare for the CompTIA Cloud+ certification exam with 700+ accurate practice questions and in-depth answer explanations. CompTIA Cloud+ Certification Practice Exams (Exam CV0-002) is filled with...

CompTIA Server Certification All in One Exam Guide Second Edition

By Daniel Lachance

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ITF CompTIA IT Fundamentals All-in-One Exam Guide, Second Edition (Exam FC0-U61)

By Scott Jernigan, Mike Meyers, Daniel Lachance

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This fully updated study guide delivers 100% coverage of every topic on the CompTIA ITF+ IT Fundamentals exam Take the CompTIA ITF+ IT Fundamentals exam with complete confidence using this bestsell...

CompTIA Security Certification Practice Exams, Fourth Edition (Exam SY0-601)

By Glen E. Clarke, Daniel Lachance

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This up-to-date study aid contains hundreds of accurate practice questions and detailed answer explanations CompTIA Security+TM Certification Practice Exams, Fourth Edition (Exam SY0-601) is filled...

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.