wiggydiggy
Guru
I forgot to mention something else they could do, include an e-book version with the printed version. Ordnance Survey maps include a download code for the OS App for the map you've just bought, brilliant idea. And going back a few years some films came with an Ultraviolet copy, meaning you had the disc but could use a digital version too. That seems to have died out though.
Book publishers really could do more IMO.
Book publishers really could do more IMO.