Setting text into a column format structure can be more challenging than it may seem. It requires a combination of visual sensibility and workmanship, especially when it comes to establishing and maintaining a consistent typographical practice on a page or within a document. There are volumes of information on typographic practice as it applies to the use of typographic columns, both in theory as well as in practice.
Don’t set an excessive number of columns on a page. Doing so will also discourage readership. There should be a minimum of 4 words per line.