LinkedIn Banner Dimensions
I spent almost 2 hours experimenting to find the precise layout placement for text in my LinkedIn Banner.
I thought I'd share the layout and make it easy for others to get it right the first time. See the layout in the featured image above.

LinkedIn banner dimensions are: 1585 pixels (wide) x 397 pixels (height)
Part of the LinkedIn banner is cut-off by the Profile Image (the big circle image that appears bottom-left).
Start your text 450 pixels from the left edge to safely avoid being cut-off by the Profile Image.
A logo (or some other element) can fit in a 169 x 169 pixel area in the top-left corner.
I hope this helps others create attention grabbing LinkedIn banners.
Cheers!