The Duolingo Handbook - Make it Fun

A mental map on the fifth chapter of the Duolingo Handbook

The Duolingo Handbook - Show, Don't Tell

A mental map on the fourth chapter of the Duolingo Handbook

The Duolingo Handbook - Ship it!

A mental map on the third chapter of the Duolingo Handbook

The Duolingo Handbook - Raise the bar

A mental map on the second chapter of the Duolingo Handbook

The Duolingo Handbook - Take the long view

A mental map on the first chapter of the Duolingo Handbook