“You should read this book’ almost never simply means you should read this book. It is usually far more fraught. Telling someone what to read, even asking politely, can feel more like an entreaty or an implied judgment or a there’s-something-you-should-know than a straightforward proposal. If you read this book, then you love me. If you read this book, then you respect my opinions. If you read this book, you will understand what it is I need you to understand and can’t explain to you myself.”