<human>:  Summarize John Steinbeck's novel 'Of Mice and Men.'
<bot>: Of Mice and Men is a novel by John Steinbeck that tells the story of two migrant farm workers, George and Lennie, during the Great Depression in California. The novel chronicles their exploits and dreams of a better life, as Lennie is driven by an uncontrollable desire for companionship and George strives to realize a dream of owning a farm. Along the way, the reader is taken through a desolate landscape of the hardships of poverty and oppression and is introduced to the characters' resilience in the face of adversity. Ultimately, their dreams are ultimately dashed, as Lennie is sentenced to death for accidentally killing another worker. The novel serves as a poignant reminder of the power of friendship and the injustices of the world.