How To Setup Pinterest Board Cover Images
Cover images are square. The minimum size image for a cover image is 340 x 340 with the optimal size being 736×736.
1/ Upload the image that you would like to use as your cover image to your board. If you want to use an existing image then go to step 2.
2/ Click "Change" on the Cover section and the screen capture below on the right will appear.
3/ Arrow across to select the image for your Pinterest board cover image.
4/ Click "Save Changes"
5/ Click "Save" to save your board
6/ Refresh your page to see the new board cover image.
For more infomation visit:
Pinterest Board Cover Images – Are You Using Cover Images?
and for a more in depth guide to Pinterest visit:
Pinterest Traffic Generation Guide