Dylan, who began working on the book in 2010, offers a master class on the art and craft of songwriting. He writes over sixty essays focusing on songs by other artists, spanning from Stephen Foster to Elvis Costello, and in between ranging from Hank Williams to Nina Simone. He analyzes what he calls the trap of easy rhymes, breaks down how the addition of a single syllable can diminish a song, and even explains how bluegrass relates to heavy metal. These essays are written in Dylan's unique prose. They are mysterious and mercurial, poignant and profound, and often laugh-out-loud funny. And while they are ostensibly about music, they are really meditations and reflections on the human condition. Running throughout the book are nearly 150 carefully curated photos as well as a series of dream-like riffs that, taken together, resemble an epic poem and add to the work's transcendence.

In 2020, with the release of his outstanding album Rough and Rowdy Ways, Dylan became the first artist to have an album hit the Billboard Top 40 in each decade since the 1960s. The Philosophy of Modern Song contains much of what he has learned about his craft in all those years, and like everything that Dylan does, it is a momentous artistic achievement.