Very basic ideas from Buddhism, and it is these basic ideas that can bring you so far in life. This is also quite a short book. A very succinct and simple book. And yet, I feel it's power is from it's simplicity.
This book also reminds me (on my own, there was no such mention in this book) on how closely related Buddhism is to Stoicism. At the end of the day, it's your mind that is bringing you all your misery.