Sandra Markle Books

The programmer's guide to the galaxy

Average: 0.00, 0 Ratings

A guide, with a galactic adventure theme, to programming techniques in BASIC and writing computer games. Includes games, jokes, trivia, photos, and puzzles. Sequel to "Kids' computer capers."

Kids' computer capers

By Sandra Markle

Average: 0.00, 0 Ratings

Presents the history of computers, investigates what computers can and cannot do, explores how they work, and explains how to operate a computer and write programs. Includes puzzles, activities, an...

Kids Computer Capers

By Sandra Markle

Average: 0.00, 0 Ratings

The programmer's guide to the galaxy

By Sandra Markle

Average: 0.00, 0 Ratings

A guide, with a galactic adventure theme, to programming techniques in BASIC and writing computer games. Includes games, jokes, trivia, photos, and puzzles. Sequel to "Kids' computer capers."

Digging deeper

By Sandra Markle

Average: 0.00, 0 Ratings

Discusses various aspects of geology, such as plate tectonics, erosion, and mineral resources. Includes related experiments and activities.

The young scientist's guide to successful science projects

By Sandra Markle

Average: 0.00, 0 Ratings

Experiments and investigations to teach necessary skills and prepare one for choosing a science project.

The young scientist's guide to successful science projects

By Sandra Markle

Average: 0.00, 0 Ratings

Experiments and investigations to teach necessary skills and prepare one for choosing a science project.

Earth Alive

By Sandra Markle

Average: 0.00, 0 Ratings

Exploring winter

By Sandra Markle

Average: 0.00, 0 Ratings

A collection of winter-time activities which include stories and facts about animals, explorer, and survival instructions for building a snow shelter and making instruments to measure the weather,...

Exploring summer

By Sandra Markle

Average: 0.00, 0 Ratings

A collection of summertime activities which includes stories, facts, handicraft, and games.

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.