If you are experiencing a lot of "gut" problems this book is extremely informational. I'm currently only half way through it but I have it very marked up with lots of notes. It is written for the clinician and the novice in this realm. I'm more of the novice but have learned so much from it so far. Highly recommended.

It's great brush for applying liquid foundation. I looked at tons and tons of brushes to find one that had a similar shape, density and flatness like the artis brushes ( a lot of them have a more rounded shape) and none of them I looked at had all that I was looking for. This applies and blend product like a dream!!! And I only used about half the amount of product I usually use because of the design and density of the brush.