I am very satisfied with this product. I like it non-gluey and light texture, and mild but quite strong fixation. It's ideal if you want a rich matte effect with clear separations and still prefer your hair looking natural, not greasy and airy. And besides, unlike many other styling products, it's washed easily from the hands.

The book is written in an extremely technical way, which might however be appreciated by "math-friendly" readers. Still in my opinion the social choice and welfare theory can be exposed in a non-technical and rather descriptive manner, which would be quite useful if your professor cannot present it propoerly, as it has been in my case.