10 Lessons from Build: An Unorthodox Guide to Making Things Worth Making by Tony Fadell

1. Start with a clear vision. What do you want to build? What problem are you trying to solve? Why is it important to you?

2. Build a great team. You can't build a great product on your own. Surround yourself with talented and passionate people who share your vision.

3. Don't be afraid to fail. Failure is a natural part of the learning process. Don't let it discourage you. Keep iterating and learning from your mistakes.

4. Focus on the user. Everything you do should be focused on creating the best possible experience for your users.

5. Be patient and persistent. It takes time and effort to build a great product. Don't expect to succeed overnight.

6. Ship it. The best way to learn is to get your product in the hands of users and get feedback. Don't wait until it's perfect to ship it.

7. Listen to your users. Your users are your best source of feedback. Pay attention to what they're saying and use it to improve your product.

8. Be data-driven. Make decisions based on data, not gut instinct. This will help you stay focused on what's important to your users.

9. Don't be afraid to pivot. If you see that your product isn't meeting the needs of users, don't be afraid to pivot and change direction.

10. Have fun! Building a great product should be an enjoyable experience. If you're not having fun, it's going to be difficult to stay motivated.

Fadell's book is a must-read for anyone who wants to build great products. He shares his insights and experiences from building some of the most iconic products of our time, such as the iPod, iPhone, and Nest Learning Thermostat.

I would also add that it is important to be authentic when building products. Be true to yourself and your values. Build products that you are passionate about and that you believe in.