Cacilda Jethá Books

Sex At Dawn: The Prehistoric Origins Of Modern Sexuality

By Ryan Christopher, Christopher Ryan, Cacilda Jethá, Jeth?, Cacilda

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A Controversial, Idea-driven Book That Challenges Everything You Know About Sex, Marriage, Family, And Society--provided By Publisher. Since Darwin's Day, We've Been Told That Sexual Monogamy Comes...

Sex At Dawn: How We Mate, Why We Stray, And What It Means For Modern Relationships

By Christopher Ryan, Cacilda Jethá

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Sex at Dawn

By Ryan Christopher, Cacilda Jetha

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Sex At Dawn: How We Mate, Why We Stray, And What It Means For Modern Relationships

By Christopher Ryan, Ryan, Christopher - Undifferentiated, Cacilda Jethá

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Since Darwin's day, we've been told that sexual monogamy comes naturally to our species. Mainstream science— as well as religious and cultural institutions — has maintained that men and women evolv...

Sex at Dawn

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En el principio era el sexo los origenes de la sexualidad moderna como nos emparejamos y por que nos separamos 1. ed.

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En el principio era el sexo

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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.