Pappy Vino's online documentation, available on the software's dedicated website www.pappyvino.ca, is accessible via the menu item, via the button in the quick access bar, or via the button displayed in the lower-right corner of most application windows:
The top panel of the Help window lists the available help topics, and the bottom panel is actually a web browser accessing the selected help topics. The two arrow buttons in the lower-left corner of the window allow you to navigate through the history of topics viewed.