Lives of the Stoics :

In this book, Ryan Holiday and Stephen Hanselman offer a fresh approach to understanding Stoicism through the lives of the people who practiced it — from Cicero to Zeno, Cato to Seneca, Diogenes to Marcus Aurelius. Through short biographies of all the famous, and lesser-known, Stoics, this book will show what it means to live stoically, and reveal the lessons to be learned from their struggles and successes.
The Obstacle is the Way:

We give up too easily. With a simple change of attitude, what seem like insurmountable obstacles become once-in-a-lifetime opportunities. Ryan Holiday, who dropped out of college at nineteen to serve as an apprentice to bestselling 'modern Machiavelli' Robert Greene and is now a media consultant for billion-dollar brands, draws on the philosophy of the Stoics.
Ego is the Enemy:

In Ego is the Enemy, Ryan Holiday shows us how and why ego is such a powerful internal opponent to be guarded against at all stages of our careers and lives, and that we can only create our best work when we identify, acknowledge and disarm its dangers.
Stillness is the Key:

Throughout history, there has been one quality that great leaders, makers, artists and fighters have shared. The Zen Buddhists described it as inner peace, the Stoics called it ataraxia and Ryan Holiday calls it stillness: the ability to be steady, focused and calm in a constantly busy world.