At first glance, the company seems to be related to the exploration of OuBaPo, the object-book obeying a number of constraints: all the pages consist of a waffle iron of nine boxes, no bubbles, by a sequence of boxes "dizzying graphic zoom", meant to represent the trajectory of a photon for 3 seconds (hence the title), which photon bounces reflecting surface reflective surface - sometimes the most unexpected. These constraints are mastered with a hair-raising virtuosity which amazes the reader first. If the boxes are silent, texts (signs, posters, newspapers, etc.) will appear, providing clues to the reader anxious to recompose an intrigue, police look. But the company is frankly laborious, and what is more uncertain. "For everyone to have their own idea," the presentation of the book. Certainly. But it is essential to get an idea? Is it worth the effort in the game? Soon enough the playful one passes by the author claimed to feel free by the reader. There were, to observe the course of "The basement of the Gone" (same M.-A. Mathieu) glee that I can not find here. Note that, as in the previous book, anagrams are also at work in "3". "In addition, we get tired pretty quickly" effect Zoom ", which is to multiply the intermediate spaces between images that sense (or contributing to the construction by the reader of a supposed sense) - and turns the pages more quickly Note that there is a digital version of the work, which escape this gravity.. To discover, therefore, and "appreciate", preferably already have some idea of the work of MAM.