The persistent interest in the investigation of the electron atom/molecule collisions is driven by the increase in importance of the electron assisted processes in the development of modern technologies. Apart from the importance of the scattering data in the various applied fields they are also of fundamental importance as scattering is one of the most basic processes to study the structure and properties of the target. Therefore, electron atom/molecule collisions have been investigated both by theoretical and by experimental atomic and molecular physics communities since the early years of 20th century. The level of activity in this field has matured enough to have its direct application not limited to physics but extended to biology, chemistry and atmospheric sciences.