Who read whom.

Every solid thread on this map stands for something on record: a book that argues with another, a commentary, a correspondence, a debt acknowledged in print. It joins a reader to the author they read, or two contemporaries who answered each other.

Dotted threads are of another kind. They bring together thinkers with no documented reading between them who ask kindred questions, so that their differences can speak. Choose a name in the list to light up its threads.