Ray Dalio, one of the world’s most successful investors and entrepreneurs, shares the unconventional principles that he’s developed, refined, and used over the past forty years to create unique results in both life and business—and which any person or organization can adopt to help achieve their goals.

In 1975, Ray Dalio founded an investment firm, Bridgewater Associates, out of his two-bedroom apartment in New York City. Forty years later, Bridgewater has made more money for its clients than any other hedge fund in history and grown into the fifth most important private company in the United States, according to Fortune magazine. Dalio himself has been named to Time magazine’s list of the 100 most influential people in the world.

Along the way, Dalio discovered a set of unique principles that have led to Bridgewater’s exceptionally effective culture, which he describes as “an idea meritocracy that strives to achieve meaningful work and meaningful relationships through radical transparency.” It is these principles, and not anything special about Dalio—who grew up an ordinary kid in a middle-class Long Island neighborhood—that he believes are the reason behind his success.

In Principles, Dalio shares what he’s learned over the course of his remarkable career. He argues that life, management, economics, and investing can all be systemized into rules and understood like machines. The book’s hundreds of practical lessons, which are built around his cornerstones of “radical truth” and “radical transparency,” include Dalio laying out the most effective ways for individuals and organizations to make decisions, approach challenges, and build strong teams.

He also describes the innovative tools the firm uses to bring an idea meritocracy to life, such as creating “baseball cards” for all employees that distill their strengths and weaknesses, and employing computerized decision-making systems to make believability-weighted decisions.

While the book brims with novel ideas for organizations and institutions, Principles also offers a clear, straightforward approach to decision-making that Dalio believes anyone can apply, no matter what they’re seeking to achieve.

For those battling autoimmune disease or thyroid conditions—or just seeking healthy life balance—the voice behind the popular blog Feed Me Phoebe shares her yearlong investigation of what truly made her well.

After she was diagnosed with an autoimmune disease in her early twenties, Phoebe Lapine felt overwhelmed by her doctor’s strict protocols and confused when they directly conflicted with information on the bestseller list. After experiencing mixed results and a life of deprivation that seemed unsustainable at best, she adopted 12 of her own wellness directives—including eliminating sugar, switching to all-natural beauty products, and getting in touch with her spiritual side—to find out which lifestyle changes truly impacted her health for the better.

The Wellness Project is the insightful and hilarious result of that year of exploration—part memoir and part health and wellness primer (complete with 20 healthy recipes). It’s a must-read not just for those suffering from autoimmune disease, but for anyone looking for simple ways to improve their health without sacrificing life’s pleasures.