The deep-thinking MC from New York saved his most cutting rhymes and innovative experiments for his album tracks. Nas' pen game has rarely been as scintillating as it is on “Undying Love”, a tragic tale of infidelity and violence. His knack for inventive songwriting is showcased on “Book of Rhymes”, as he takes some forgotten scribbles found in his old notepads and seamlessly knits them together over The Alchemist's mellow beat.