CALVIN'S BEST KNOWN writings (e.g., The Institutes of Christian Religion) are mainly those of a theologian arguing with other theologians and can be a bear to tackle. McKee switches things up by focusing on writings in which Calvin is talking to lay people, members of his church or his movement, about being a Christian and living as a Christian: we get sermons, some prayers, some explanations of the liturgy, excerpts from books he wrote expressly for lay people, and some letters.
He still sounds learned and often stern, but he has taken the tone down a notch here, and he is not trying to lay waste to other people's arguments, so we get a different image of the man.
Still, he leans in hard on the basic tenets of reformed Christianity. You (and all of us) are one sorry case. (Calvin's near-perfect contempt for his own species counts for much in the general idea of him.) Nothing you could possibly do for yourself can save you. Nor can any church or sacrament save you. Only God can save you--and God did, through the agency of Jesus Christ. That's the whole story. Grasp that and hold on to it.
We can still get together in a community, i.e., a church, for mutual support and encouragement, and we can perform the sacraments recorded in the gospels (communion and baptism), but Calvin emphasizes that the bread and wine are but the "mirror" or "likeness" or "visible sign" of the atonement, not the atonement itself, as baptism is but the visible sign of your redemption, not the redemption itself. The sacraments, the pastors' sermons, the ceremonies of worship all keep us focused on the main idea, but they are means to an end, never an end in themselves.
As for pilgrimages to saints' relics, or counting repeated prayers, or venerating statues--kick all that back down to Rome where it belongs. None of that claptrap saves you. The priest and his sacraments don't save you. The church doesn't save you. Jesus saved you, and no matter what you do, you're going to stay saved, whatever the priest and the church say.
One item that particularly struck me is Calvin's unpacking of the Lord's Prayer, which he pointedly reminds us is not designed to be a prayer said by an individual for his or her own sake, but a prayer said by all of us for all of our sakes.
The final and for me most memorable item: a letter written to several women who had been arrested for worshipping as Protestants. In France, this worship made them heretics, who could be burned at the stake (as one of them was). I can't imagine what I would have been able to write to people about to be burned at the stake for belonging to a movement of which I was a leader. Calvin came up with something that honored them and might have consoled them. He seems like a mensch.