Digital or paper, it doesn't matter as long as it covers everything.
And I'm not asking for either a list of everything in the game or a strategy guide but for a manual explaining (even with screen captures) the different screens, the background of factions, how the world reacts, the parts of the game (diplo, tactical combat, city building,...) and actions of the game. And a step-by-step description should be that of the tutorial like in page 7 to 26 of the Dom3 manual.
The Age of Wonders manuals were also...wonderful. 