A Luther bonanza.
This biography is excellent. You’ll want to read it. You’ll also want to get this collection of bits from the Table Talk. And no one who calls themself a biblical scholar can overlook this book. Music lovers and those who appreciate Luther’s poetic skills will like this one. And if you read German you’ll seriously want to grab his songs in that tongue and his ‘Large Catechism’ in German. That’s six books, all free. You’re welcome.