The book "David Levinsky Squad" by Abraham Kagan is a classic American literary work that tells the story of the difficult journey of a Jewish immigrant in New York at the beginning of the 20th century. The main character, David Levinsky, undergoes many trials in his pursuit of success and material well-being. The author extremely vividly reproduces the atmosphere of the times, describing the social, cultural and economic realities of the city and deeply analyzing the psychology of his hero. "David Lewinsky's Squad" is an important work that helps to understand the complexity and contradictions of American society at that time through the prism of the life of one individual.