Age of Wonders is a strategy game series; cut and dry explanation is that the games revolve around using hero characters to gain land/resources, build territory and armies, and beat down any enemies which prevent you from doing that. I like the AOW series because they have interesting plots to follow while you're doing 4X (explore, expand, exploit, exterminate) stuff; there are also interesting races/units, and a spell casting system which lets you aid your armies/territory building, but that's also available in other games.
Here's an awesome gameplay trailer for AOW3 with a dev playing the game- it's worth watching all the way to the end. In short, definitely play AOW games, they will rock your socks :]
https://www.youtube.com/watch?v=Z4Su5M7FKNE edit: as for new player friendliness, I think so- try playing the games on the easiest setting to get used to them.
I also found a
demo