How does the tone change throughout the poem?

Describe a theme that the author develops through these two excerpts. then analyze how the two excerpts interact and build on one another to develop this theme. be sure to use specific details from the text to support your ideas.

During the industrial age, what was one important way businesses told consumers about new products? through phonographs through telephones through telegraphs through catalogues

In 300 words or less, summarize the prologue