The term "thin bodies" includes shells, plates and rods. Such bodies are divided in two groups: shell-like and rod-like bodies. The first group includes shells, plates and thin-walled rods, and the second group includes beams and rods with rigid cross-sections. Two approaches to model thin bodies deformation are developed in the scientific literature: axiomatic and approximate. The axiomatic approach was developed by J.Bernoulli, L.Euler, and Cosserat brothers. The paper by J.Ericksen and C.Truesdell  stimulated a general interest to axiomatic models of the deformation in mechanics. The review of the relevant publications is given in the references [2–5].This lecture is devoted to construction and application of the approximate deformation models for rod-like and shell-like bodies.