I really enjoyed this book and a follow on from his Algebra of Happiness. This book goes over many facets of life, income, earning, vocation, relationships, and more. Wealth = Focus + (Stoicism x Time x Diversification).

I'd recommend this for any upcoming or recent college grad, anyone recently into their career to mid career. For anyone beyond mid career, it's a checkup and call to change.

Four major sections with smaller essays on a particular topic, and each of the major sections gets a summary of "action item bullets".