IMO you can read them in pretty much any order and get 90% of it. Most of them were self-contained. In same cases there are occasional characters, like Susie,

IMO you can read them in pretty much any order and get 90% of it. Most of them were self-contained. In same cases there are occasional characters, like Susie, and Calvin's perspective of her changes over time, but you can read any strip with Susie in it and probably get the message even without knowing her history in the strip.