How to make playlists in Spotify?
Spotify offers a simple way to create playlists. Click the New Playlist and type the name of the playlist. It can be anything you want with any description you want. After this, locate the tracks and right click them or use drag and drop. When you right click a track it, you will have the possibility of assigning it to the available playlists or create another one.
For more information about playlists for various operating systems supported by Spotify, use the following link: https://support.spotify.com/us/learn-more/guides/#!/article/Save-your-music-with-Playlists