Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. In those eight years, Mangione was what I’d call medium-engaged with the platform, logging 300-plus titles on Goodreads’ standard out-of-the-box Read, Currently Reading, and Want to Read “bookshelves” and creating three of his own lists—“Favorites,” “21st century reading list,” …