Tom One volume would not be very handy. "A Companion to The Cantos of Ezra Pound" by Carroll Terrell is essential. Terrell not only suggests background reading for each Canto but also provides references to exegesis for most. I find "Pound's Cantos" by Peter Makin useful but no one author is going to fully address each Canto to your satisfaction. Rick Seddon McIntosh, NM