John Wyndham Books

The Day of the Triffids Unicorn

By John Wyndham

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Die Triffids Die Expedition der Space Beagle 2 SF Romane bk118

By John Wyndham

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Es geschah am Tage X Die vergessene Welt

By John Wyndham

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The Kraken Wakes

By John Wyndham, Wyndham. John

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It started with fireballs raining down from the sky and crashing into the oceans' deeps. Then ships began sinking mysteriously and later 'sea tanks' emerged from the deeps to claim people . . .For...

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.