Readwise lets you quickly liberate your highlights (all into one place), and ensures that you'll actually see and use them.
How often do you finish a book, only to forget the key ideas two weeks later? We don't remember things by just reading them once.
Readwise fixes this using a scientific process called Spaced Repetition. We surface your best highlights back to you at the right times, and let you review them every day with the daily email and app.