This document provides an introduction and overview of lead acquisition and lead nurturing strategies. It discusses identifying prospective customers' buying cycles, including the awareness, consideration, preference, purchase, and re-purchase stages. It then outlines traditional pre-1995 and digital 1995-2005 lead acquisition methods, as well as more recent social media approaches. The document defines lead nurturing as helping prospects move from awareness to purchase as quickly as possible or determining they do not need the product. It stresses qualifying leads by identifying their budget, authority, need, and timeline (BANT criteria) to focus on those most likely to purchase.