How can John Steinbeck's literary compositions be described?

Most John Steinbeck novels examine the lives of the country's poor and destitute, America's Les Miserables. From the migrant farm workers of Of Mice and Men to the foreclosed on farmers on Route 66 fleeing the Dust Bowl in The Grapes of Wrath, Steinbeck turns the social issues into the personal conflicts of all-too-human characters, merging poetic description with realistic dialogue in dramatic plots.