3D printing or additive manufacturing (AM) is being embraced for rapid prototyping and development. Nowadays, 3D printing has become a worldwide priority and its importance is recognised in the manufacturing sector. It helps the corporate world create replicas in low processing time and at low cost. There are already several techniques and materials for 3D printing. It is on the verge of quick, personalised and economical goods in current society, bringing about a sea change. This paper is about the historical background, materials, types and applications of 3D printing.