Understand the Human. Improve the System. is supplied as a digital PDF and is made available for download immediately following purchase.

By purchasing the digital publication and requesting immediate access to the download, you acknowledge that delivery of the digital content will begin immediately.

Because the product is digital and access is provided immediately, refunds will not normally be offered once the digital publication has been accessed or downloaded.

However, if you experience a technical problem that prevents you from accessing the publication, receive a defective or corrupted file, are charged incorrectly, or believe there has been an error with your purchase, please get in touch so the issue can be resolved.

Nothing in this policy affects any statutory rights you may have under applicable consumer law.