Beau Nelson says "Contouring is giving shape to an area of the face and enhancing the facial structure through makeup". This is achieved by using two different shades of powder, cream and so on. Highlighting is basically adding light to your face.

Things needed are your regular  foundation which is same colour as your skin tone, two other foundation (darker and lighter shades). You can use a brush or your fingers for blending.

Step 1
Start by applying; continue reading http://www.miimisdiary.com/2016/07/basic-tips-for-highlighting-and.html