As a means of facilitating the mental effort necessary
in studying the numerous data which the technical
student employs, charts have been conceived. As
conclusions concerning future price trends are so
dependent upon the previous course of prices, the
technical student, like the fundamental student except in
a different way, finds it essential to have before him an
accurate, up-to-date, historical picture of the course of
stock prices. As in any other human endeavor, pictures
more strikingly emphasize cold tabulations of facts or
figures.