Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a very handy reference of basic geometry

It is just over 200 pages, each containing nine designs. The book is categorized into types of design (i.e. the octagram and eight-pointed star, the triangle and its combinations, ringed interlacement etc.). The designs are presented in small (ca.3x3cm) squares, black and white, so nothing is squandered in this neat little book. It is very handy and easy to take along wherever you go, and wonderful to get ideas from wherever you may be (with a mind needing a geometric struggle, riddle, or to play with form). I often use it when I go out for a café, and scribble all kinds of designs while sipping my coffee. The book really stimulates the mind, geometrically. And the black/white neat presentation makes it just right. In fact, it is perfect for the purpose of taking along to really *use* and work through, - while you keep all those shiny, glossy grand reference books at home on the bookshelf.