Personal-use licence

When you purchase a HayZ digital book, you receive a limited, non-exclusive, non-transferable licence to download, store and read the book for your own personal, non-commercial use.

You may

• Store the digital book file on devices and private backup services that you personally control.
• For PDF editions, print one complete copy for your own personal use.
• Quote brief passages for genuine review, commentary or discussion, with clear credit to the book title, HayZ as author and the official purchase page.

You may not

• Forward, share, lend or give the digital book file or download link to another person.
• Upload the file to a public or shared drive, website, file-sharing service, membership library, torrent, repository or group chat.
• Resell, sublicense, rent, bundle, reproduce or distribute the book in whole or in substantial part.
• Remove or alter copyright, attribution, watermark or licence information.
• Use the complete book or substantial extracts to create a competing product, commercial training resource, dataset or AI-training corpus.

Reviews and promotional use

You are welcome to share the cover, title, official product link and brief quotations. For a review, article, video, newsletter or social post, you may quote up to 200 words in total when the quotation is accurate and includes the book title, HayZ as author and a link to the official book page.

Permission is required for longer extracts, complete exercises, tables, worksheets, chapter reproductions or use in a paid product, course, event or membership.

Group licences

Copyright and all rights not expressly granted remain with HayZ. Schools, organisations, coaches and businesses that want to provide copies to more than one reader should request a group licence from hello@hayzzz.com.