Actually if you look closer it's a combination of DAWs on the cover: ProTools, Studio One, Ableton Live, etc. The description you posted says:
"These techniques apply to DAWs in general, but you’ll also find specific examples for Pro Tools, Ableton Live, Studio One, Cubase, and Digital Performer."
"With this upgrade, you unlock the latest version of Bitwig Studio. Only valid if you own an earlier version of Bitwig Studio."
I only got Bitwig 8-Track. ?