You can access the User Guide at any time under “Help” in the NVDA menu. Press either INSERT and the “N” key, or CAPS LOCK and the “N” key to open the NVDA menu. Alternatively, click on the NVDA icon in the task bar. View user Guide; Training. Start with “Basic Training for NVDA”, available in electronic text, human-read audio …
https://www.nvaccess.org/download/