This document discusses different types and classifications of selling. It describes McMurry & Arnold's classification of selling into groups A, B and C based on different selling approaches. Group A includes inside order sales, delivery sales, outside order sales, missionary sales and technical sales. Group B involves creative selling for tangible and intangible products. Group C requires unusual creativity for political, indirect or backdoor selling and multiple selling. Derch Newton's classification and other types like consumer indirect selling, group selling, telesales, franchise selling and international selling are also outlined. Challenges of different selling approaches are highlighted.