This final work describes in detail the elasticity of supply and demand, their basic types and divisions. It consists of seven parts. Work begins by analyzing the concept of elasticity in order to understand better the elasticity of supply and demand itself. The resilience of demand is described in detail where its main types are described in detail, namely: price, income and cross-demand elasticity. The price elasticity of demand shows how the quantity demanded will change depending on the price change of a good. Income shows that the amount of goods we are looking for responds to changes in income, while the cross-demand elasticity of the demand shows the sensitivity of the quantity demanded of some goods on changed price of another good. Within these three basic types, we have subsets of every elasticity. With regard to the elasticity measurement method, the elasticity at one point and the elasticity at the point between the two points are defined. Each type is attached by an illustration of the curve explained in the text and an example of real life and formula for calculating each type of elasticity. After the elasticity of the demand is followed by the whole Elasticity of the Offer, which in terms of the elasticity of the offer quotes its basic types, namely: elastic, unit elastic and non-elastic offer and illustration of curves for each particular type. After analyzing these two elasticities of supply and demand, , consumer behavior is described on an example from real costumers life to confirm all the facts of the previous two parts, and the equilibrium point that is formed by the cross section of the supply and demand curves, which is actually the ultimate goal of each consumer. The work ends with conclusion.