"Master Class" is written and annotated by Kevin Lee A.n.a Yusef and Lloydbeen of Turks and Caicos his private island Salt cay . He is the founder ownerof Universal music group , films / studios the conglomerate . He has anotherbook "Hip Hop the last religion" insight on entering the music industry &building business . His experience comes from working decades Incommercial entertainment hands on song writing for artist like Ella FitzgeraldJay-z , Dullah Trey Songs (Jupiter Love & Never Enough) , Alicia Keys (I needyou) , 50 Cent (First album) Vado (only first verse on "Mo Harlem") Beyonce(Schoolin Life) movies like "Love & Basketball" , "Fallen" starring Denzel