Calvin Institutes with Commentaries
The Institutes must not be read instead of the commentaries, but with them: the commentaries and the Institutes together provide, in what Calvin thought to be a better arrangement of materials, what one would find in the commentaries of other writers. Indeed, if one wishes to ascertain the biblical basis of Calvin's topical discussions and disputations, one must read the commentaries.
Richard Muller. The Unaccommodated Calvin (New York, NY: Oxford University Press, 2000), 108