Mark Leader Books

Blueprint For Success

By Ken Blanchard, David E. Wright, Petey Parker, Dianne Durkin, Stephen R. Covey, Pat Mayfield, Joy Ohayia, Ken Blanchard, Stephen R. Covey, Joy Ohayia, Jim Gottfurcht, Deborah McLaughlin, Erick Burton, Rosemary Rein, Dianne Durkin, Wally Hauck, Terri Levine, Terri Levine, Wally Hauck, Mark Leader, Jim Gottfurcht, Deborah Mclaughlin, Erick Burton, Rosemary Rein, Yvonne Kinney-Hockert, Ken Blanchard, Stephen R. Covey, Tim Kelley, Bill Treasurer, Steve Douglas, Kathleen Caldwell, Dr. Patricia Gangi, Dr. Kenneth Blanchard, Jim Dillahunty, Dr. Jeff Hockings &Ahli Moore

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DISTINGUISHING MARKS OF A LEADER

By Bob Proctor, Mark Leader

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What makes the difference between mediocre and outstanding performance? Having noticed that the top 20 percent of salespeople secure 80 percent of all business--leaving the bottom 80 percent of age...

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.