what is your definition of a superstar salesperson for an early-stage post product market fit startup? what differentiates the top 10% of salespeople from the r

what is your definition of a superstar salesperson for an early-stage post product market fit startup? what differentiates the top 10% of salespeople from the rest? what resources do you recommend to learn sales if you're young and inexperienced and want to begin your startup sales career?