In How to Rap, Guerilla Black notes that Eminem studied other MCs to hone his rapping technique: "Eminem listened to everything and that's what made him one of the greats".
I bogen How to rap noterede Guerilla Black sig, at Eminem har studeret andre MC'er, for at lave sin egen rap-teknik – "Eminem lyttede til alt og det var det der gjorde ham til en af de bedste".