Gary Goldschneider Books

The Astrology of You and Me

By Russell Bentley, Gary Goldschneider

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The Secret Language of Birthdays

By Gary Goldschneider

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Over a million copies sold! Discover the significance of your birthday with this wholly unique combination of astrology, numerology, and pure psychic intuition that reveals your strengths and weakn...

The Secret Language of Relationships

By Gary Goldschneider, Joost Elffers

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"... presents relationship profiles between any two individuals based on the period personalities, for ... 1,176 total possible combination summaries."

The Secret Language of Destiny

By Gary Goldschneider, Joost Elffers

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This indispensable astrological text addresses the question we all ask at some point during the course of our lives: "What is the purpose of my life?" It identifies, based on birthdate, what, on a...

The Secret Language of Birthdays

By Gary Goldschneider

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The Secret Language of Relationships

By Gary Goldschneider, Joost Elffers

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Secret Language of Birthdays Relationship Workbook and Birthday Keeper

By Gary Goldschneider, Joost Elffers

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The Secret Language of Destiny: A Personology Guide to Finding Your Life Purpose

By Gary Goldschneider, Joost Elffers

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The Astrology of Time

By Gary Goldschneider

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THE ASTROLOGY OF TIME picks up where the very popular Secret Language series left off, providing unique guidelines for living based on time of year. A groundbreaking book that takes a distinctive...

Charting the Times of Your Life

By Gary Goldschneider

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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.