Harry Pombo Villegas Books

Pombo A Man of Che s Guerrilla

By Harry Pombo Villegas

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Guerrilla Warfare

By Ernesto Che Guevara

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Che Guevara’s classic text on revolutionary tactics and strategy.Since Guerrilla Warfare was first published in 1961, it has joined the canon of classic military literature, consulted by revo...

Guerrilla Warfare

By Ernesto Che Guevara

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Che Guevara’s classic text on revolutionary tactics and strategy.Since Guerrilla Warfare was first published in 1961, it has joined the canon of classic military literature, consulted by revo...

La Guerra de Guerrillas

By Ernesto Che Guevara

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El primer libro del Che, escrito tras su experiencia de lucha en Cuba, imprescindible para entender el pensamiento del guerrillero heroico, en el que teoría y práctica revolucionarias...

La Guerra de Guerrillas

By Ernesto Che Guevara

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El primer libro del Che, escrito tras su experiencia de lucha en Cuba, imprescindible para entender el pensamiento del guerrillero heroico, en el que teoría y práctica revolucionarias...

Che en la memoria

By Harry Pombo Villegas

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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.