At TNBS, we're reading through Know the Heretics, by Justin Holcomb. Here's our 2-sentence summary of chapter 7.
Chapter 7: Arianism
Heresy: Jesus is a close second to God the Father.
Orthodoxy: Jesus is fully God: co-equal to and of the same divine substance with. the Father.
We meet most Tuesdays for Theological Nerdiness and Bible Stuff.