This document provides an overview of sales training concepts including the sales and buying cycles, the four stages of a sales call (SPIN model), and sales training methods. The SPIN model involves using Situation, Problem, Implication, and Need-Payoff questions to move a prospect from unknown problems to explicit needs. Obtaining commitment is the final stage and requires resolving concerns, summarizing benefits, and proposing a commitment. Training methods include cognitive, behavioral, on-the-job, and off-the-job approaches. Developing new skills efficiently involves practicing one skill at a time for quantity before quality in secure situations.