Robert Higgs strongly endorsed this book on Facebook.
Here's a blurb about it from mises.org:
Readers who want to get a flavor for the ideas of Friedrich Hayek will find an excellent introduction in Donald Boudreaux’s The Essential Hayek. The book can be downloaded free by clicking here.
Each chapter begins with a quotation from Hayek, but the book’s chapters explain Hayek’s ideas in Boudreaux’s words. Those ideas come from various works by Hayek, so the book is not a summary or discussion of specific works by Hayek, but rather an overview of Hayek’s ideas on the economy, on law, and on social organization more generally.
The book provides an excellent discussion of