Grapher's help is available in two places: within the program and online.
The in-program help is included in the program and accessed through a program menu command. Click the Home | Help | Contents command to open the help. The help contains information on all the commands, dialogs, and features of the specific program. You can also access the in-program help by pressing the F1 key on your keyboard, clicking the button in the upper right corner of the application, clicking the button in the upper right corner of most dialogs, or typing in the search bar at the top of the ribbon bar.
You can also access the help online, at grapherhelp.goldensoftware.com. This help file is identical to the one in the program.
For information on other Grapher resources, see here: https://support.goldensoftware.com/hc/en-us/articles/226663868-Does-Golden-Software-offer-Grapher-Training-.
Updated July 16, 2018