This book investigates the multifaceted origins and global spread of salsa music, exploring its diverse stylistic roots and cultural impact. Steward, an author with a background in music journalism, utilizes historical accounts and musical analysis to trace the evolution of salsa from its Cuban beginnings through its development in New York and its subsequent international popularity. The work argues that salsa is not a monolithic genre but an umbrella term encompassing various Latin rhythms and styles that have captivated a worldwide audience.

The book is recognized for its comprehensive exploration of salsa's rich history and diverse musical components. It is noted for tracing the genre's journey from its Cuban origins through its significant development in New York City and its eventual worldwide appeal. The work is appreciated for detailing the various styles that fall under the umbrella term 'salsa,' offering insight into the music's cultural and social impact.