This text is a brief version of book "On a hook. How to create foods, forming habits".Researches assert that people check up the telephones on the average 34 times per a day. However specialists consider that this number is considerably understated, and we take the смартфоны in hands to 150 one time per days. We do it on an automat, quite not beginning to think. It one of the most prime examples, how to plant users on a "hook" to compel to call to the product in increasing frequency.We "заглатываем hooks" over and over. Felt miserable - check the ribbon of news in Instagram. you want quickly about something to know - open Google. In the modern world of informative high-tech to create such habits as easy as anything. Thus companies do not need to spend facilities on withholding those, who already is on a "hook", - they hardly will change the habits and will pass to something a new, and in addition, will recommend your product the friends.In our review we will tell how producers help on a "hook", compelling to use the foods as possible more often. you hear about a fourstage model of "hook", that helps to inoculate proof habits to the consumers. Passing a simple test from two questions, you will be able to check your business or new idea for ethicness. And main - you hear about that, how to do so, that your product compelled to fight more often than heart of millions of people.We remind that this text is a summary of book