Christopher Ricketts Books

The Secrets Of Kalis Ilustrisimo

By Diego De Diego Antonio, Antonio Diego, Christopher Ricketts

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Master the art of Filipino kalis with this illustrated martial arts guideThe Filipino martial art of ilustrisimo hails from Cebu, Philippines, where martial arts are still considered a matter of l...

Kali Ilustrisimo: The Sword Fighting Art Of Antonio Ilustrisimo

By Christopher Ricketts

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With Over 3 Decades Of Intensive Training In Both Filipino & Chinese Disciplines, Christopher Ricketts Presents Kali Ilustrisimo As It Was Taught To Him By The Now Legendary Swordsman, Antonio Ilus...

The Secrets Of Kalis Ilustrisimo: The Filipino Fighting Art Explained

By Antonio Diego, Christopher Ricketts

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Master the art of filipino kalis with this illustrated martial arts guide. The Filipino martial art of ilustrisimo hails from Cebu, Philippines, where martial arts are still considered a matter of...

Computers In Haematology

By Allan Jacobs, I. Cavill, Christopher Ricketts

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ix, 93 p. : 23 cm Bibliography: p. 88 Includes index

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.