This chapter is intended to be an overview of the aspects of solar wind, with particular emphasis on the properties of the solar wind within about 1AU of the Sun. The topic is split into two parts on the basis of two types of solar wind flows, (i) quasi-stationary winds and (ii) transient flows. The first part covers the basic ideas of the coronal heating and acceleration of the quasi-stationary wind. It also reviews the large-scale properties and long-term changes of quasi-stationary structures of the solar wind. The second part describes the characteristics of transients in the solar wind and highlights results on the study of radial evolution of transients generated by coronal mass ejections in the inner heliosphere. A brief discussion of the spectral characteristics of micro-turbulence in the solar wind is also included.