You read non-fiction. Weeks later you remember the main idea, but not the principles that resonated most while reading. Echoes keeps what you decided was worth remembering and puts it back in front of you, one notification at a time. For people who want to apply what they read not just read it. Name a book and Echoes pulls out its principles. Keep the ones that resonate, add your own quotes and notes. They come back as daily notifications. Over time you build your own library of wisdom.