Rodney O. Davis Books

Herndon's Informants: Letters, Interviews, and Statements about Abraham Lincoln

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Publication of this long-awaited volume makes available for the first time in complete and accessible form the most important source of information on Lincoln's early life. For twenty-five years a...

Herndon's Lincoln

By William H. Herndon, Jesse W. Weik

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Herndon on Lincoln

By William Henry Herndon

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After Abraham Lincoln's assassination in 1865, William H. Herndon began work on a brief, "subjective" biography of his former law partner, but his research turned up such unexpected and often start...

Lincoln's Confidant

By Wayne C. Temple

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Knowing Him by Heart

By Fred Lee Hord, Matthew D. Norman, Rodney O. Davis, Douglas L. Wilson, Michael Burlingame

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Lincoln s Confidant

By Wayne C. Temple, Rodney O. Davis, Douglas L. Wilson, Michael Burlingame

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Knowing Him by Heart

By Fred Lee Hord, Matthew D. Norman, Rodney O. Davis

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Lincoln Douglas Debates

By Rodney O. Davis, Douglas L. Wilson

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Herndon s Lincoln

By Rodney O. Davis, Douglas L. Wilson, William H. Herndon

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Herndon on Lincoln

By Douglas Wilson, Rodney Davis, William Herndon

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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.