J. Cole's album '4 Your Eyez Only' is a soulful and socially conscious work that reflects the rapper's desire to change the world. The album's promotion strategy is similar to that of his previous album, '2014 Forest Hills Drive'. The cover art is inspired by a chance encounter with a young boy in Atlanta. The album's instrumental sound is influenced by jazz, giving it a warm and emotional feel. Overall, '4 Your Eyez Only' is a significant addition to J. Cole's discography and a must-listen for hip-hop fans.