My rating: 4 of 5 stars
According to the introduction by John Olin, Cardinal Jacopo Sadoleto wrote to the city of Geneva in 1539, stating his case for its residents to come back to the Roman Catholic Church. The Genevan Little Council asked Calvin, who had been removed after a dispute about proper worship, to respond. He did, and this helped the cause of those that wanted Calvin to come back.
You can really see the Reformation-era debate about authority at work in the letters, as Sadoleto argues for the Church’s teaching authority while Calvin gives the Scriptures pride of place. The end of this short book also has significant excerpts from Calvin’s Institutes and the Council of Trent on justification.