After your purchase, you will automatically receive an email with a download link for your order, which is valid for 72 hours. If you have not received an e-mail (please check the junk folder) or you have failed to download it in time, please write an e-mail with your invoice number to [email protected]. We will refresh your download link.

You can download the e-book as a PDF file. Most computers, tablets or smartphones can open PDF files, and you do not need to install any additional software.

Please save your purchased e-book files locally on your device.