The book talks about how, by improving your products, to make them indispensable. Drawing on years of research and extensive practical experience, Nir Eyal and Ryan Hoover describe the "hook" model: a four-step process that successful companies use to create consumer habits. After reading this book, you will master the basic principles behind many addictive things. which we use every day, which means you can create a new generation of products that can win the true love of consumers. Published in Russian for the first time.