This text is a brief version of book "On a limit. Week without pity to itself".Present the life as a straight line. you give birth, live, die after. Fight for a survival to you, probably, unknown, unlike the population of Earth, above-ground in the less developed countries. you understand that all days of your life look one like other, something does not have you, while you slowly, as on rails, move on a straight line lives.Now present that you can deviate from the line, violate the ordinary course of events, do a large loop long in one week! Maybe, exactly it to you and is it needed is a "hellish week", during that you will be able to give up a routine, pass new tests, go out from the zone of comfort? This methodology the book of Eric Бертрана Ларссена is sanctified to "On a limit. Week without pity to itself".The idea of "hellish week" occurred to the author of book, since in young days he passed experience of army preparation for entering military college in Norway in 1992. Within a week recruits, in the number of that was and Ларссен, were exposed to the physical and psychological ordeals. They executed the tasks of officers, running into a cold, hunger, dirt, lack of dream. Many of participants of tests did not reach to the end and left, on expression of officers, "from lack of will-power".An author understood for this week, that a human organism possessed surprizing property: he can get used to all difficulties listed above. Ларссен discovered that can sleep for a few seconds upright, to take no notice on numerous bruises, cuts and scratches, substantial loss in weight and heaviest physical activities.Well going a test and getting recommendation for entering college, an author came home. Only after a return, dipped in hot bath and feeling the aroma of domestic food, he felt unforgettable sense of beatitude. He understood that a "hellish week" on army collections had become a tipping point in his life. This experience helped to become him more confidently in itself, to know, what his organism is actually capable on. Ларссен asserts that exactly these feeling everybody that will read will be able to test his book to the end, it will follow instructions and sooner or later will try to arrange to itself a "hellish week". In our review briefly we will tell about her rules.We remind that this text is a summary of book