Switch: How to Change Things When Change Is Hard

First book I read from the Heath brothers. It has some interesting stories and explains the theory of  how to change things when is hard.
The summary is:

A. Direct the Rider

• 1. Follow the Bright Spots. 
• 2. Script the Critical Moves.
• 3. Point to the Destination. 

B. Motivate the Elephant

• 1. Find the Feeling.
• 2. Shrink the Change. 
• 3. Grow Your People. 

C. Shape the Path

• 1. Tweak the Environment
• 2. Build Habits.
• 3. Rally the Herd.