Bo Giertz's Help for the Historic Lectionary
Here is what Rev. Todd Peperkorn wrote almost four years ago:
There are two pages on each Sunday of the Church Year. In it he takes a doctrine that the Sunday proclaims, has 20-30 Scripture references in the margin, and then has 4-5 paragraphs on the doctrine based on the text for the Sunday. The Scripture references are invaluable, as they draw the reader/hearer/preacher into the whole of the Scriptures for each given Sunday.
For anyone who preaches, this volume is a wonderful addition and useful tool. For anyone who listens to preaching, this will deepen preparation for the divine service, and receiving what our Lord would give to us in the proclamation of his word."
Available from Amazon as a paperback or as an e-pub book (should work on anything that can read .pdfs, including the i-pad).