Simplify the following text for a Grade 11 native English-speaking person.
Original: Bly 's early collection of poems , Silence in the Snowy Fields , was published in 1962 , and its plain , imagistic style had considerable influence on American verse of the next two decades .
Simplified: Bly 's early collection of poems , Silence in the Snowy Fields , was published in 1962 , and its plain style had considerable influence on American poems of the next two decades .