At Custom Earth Promos, we're all about the environment and we love sharing the latest environmental news and tips with our fellow environmentalists – books included.

Below you'll find a list of some of our favorite green books that we think every environmentalist should have on their bookshelf. From renewable energy to travel, sustainability to fashion, these five books are bound to inspire (pun intended).

Happy reading!

1. Sustainability Starts at Home: How to Save Money While Saving the Planet by Dawn Gifford

Sustainability Starts at Home proves that you can change the world, one baby step at a time. This book is for those who worry about the future of the planet but don't feel like they can make a difference.

Author and eco-blogger Dawn Gifford shares her extensive research into why today's environmental problems exist and offers some inspiring tips on how to reduce your carbon imprint while simultaneously saving hundreds of dollars on water and energy bills. By making a series of small, doable changes, you can make a big difference.

2. Renewable: The World-Changing Power of Alternative Energy by Jeremy Shere

Arranged in five parts – Green Gas, Sun, Wind, Earth, and Water – Renewable tells the stories of the most interesting and promising types of renewable energy. This book comes at a perfect time when new policies focused on renewable energy are forming around the globe. We recommend it to anyone interested in learning more about sustainable sources of energy for the future.

3. Trespassing Across America by Ken Ilgunas

Author and environmentalist Ken Ilgunas' new book, Trespassing Across America is not only about a love for travel, but also about coming to terms with climate change. MJ Franklin at Mashable describes it as “part stirring travel memoir and part powerful exploration of the environment.”

Ilgunas wise words will help you figure out what your role is in confronting something as big as climate change. 

4. Sapiens: A Brief History of Humankind by Yuval Noah Harari

History can teach us a lot about the future and Dr. Yuval Noah Harari agrees. Harari breaks the mold with this unique book that begins about 70,000 years ago with the appearance of modern cognition.

Harari's Sapiens predicts that humans will vanish within a few centuries due to environmental mismanagement. The book also earned a recommendation from Mark Zuckerberg.  Could it have received a better celebrity endorsement? 

5. Overdressed: The Shockingly High Cost of Cheap Fashion by Elizabeth Cline

We've given you some tips on how to swap out fast fashion for a more sustainable wardrobe, but if you're in search of a more in-depth look into where exactly your clothes come from, look no further. From the factories of China to the streets of New York City, Overdressed sets out to uncover the true nature of cheap fashion and how it disrupts not only the fashion industry but the environment, too.

What are your top green books?

If you have a favorite eco-friendly title you're itching to share with fellow environmentalists, please share it in the comments below.