The great thing about this goal-oriented, generous book is the fact that Aucoin is not tied to any specific company. So it does not rip off the reader by recommending products that are currently in fashion or on department store stands. Instead, for his myriad styles, Aucoin will merely identify "light flesh-coloured lip pencil", or "liquid black eyeliner". No brand names - yippee! Thus it tremendously increases your awareness of products and the standbys and treats that you'll need in your artillery to achieve the looks you want, whether on yourself or on others.
Also, Aucoin clearly and productively analyses each feature of the face at the beginning. He explains the principles of applying foundation, blush, eyeliner, eyeshadow, lipliner, lipstick - even eyebrow pencil (telling you to make a "box" at the inside corner - hello, Ava Gardner!). Very clever, very helpful.
Finally, Aucoin is brilliant in his analysis of brushes, and again, does not plug any particular line. But he does explain what different brushes do, and you can therefore conclude for yourself which of them you'll need. Best is to go to a theatre make-up shop, where you'll get (usually) disinterested advice.
The illustrations and "types" of look are wonderful and really extend one's range and comprehension. As a professional entertainer, I have found this book indispensable for my own make-up, and also incorporate its principles at home for day or innocent make-up, reserving dramatic styles for stage or evenings.
Enjoy! Brush up your brushwork!