The book consists, in a conventional way, of a series of pages, each one of them being formed by two plates of hard cardboard and an intermediate layer made of rubber foam. The cardboard plate (1) of the front side and the cardboard plate (1′) of the reverse side respectively incorporate slots (3, 3′), that describe a trajectory with the shape of an “L”, or any other appropriate trajectory. The slots (3, 3′) are intended to allow the children to introduce their fingers and move a cursor (4) that slips through a slot (5) in the rubber foam layer (2), thus making an itinerary or path for the cursor (4), that can be followed with the finger of the child through the path created by such slot (5) of the rubber foam layer (2).