Tips on making good slides

What Font size should you use?

What Font type should you use?

For sentences use Serif.  For example:

However most slides should aviod sentences and paragraps and instead use point form.

Thus most  slides use Sans Serif. For example:


An example of a slide with not enough contrast between the elements and background

  • Be very careful to maintain sufficient contrast between the figure and the background.
  • When composing slides on a computer, the colors on the screen can be misleading. The screen underestimates the contrast (and minimum line thickness) that a slide requires, particularly in a big auditorium. Test run a few slides in the size of the auditorium you will use.


  • If you use a dark background, use very light colors for lines and text.

  • If you use a light background, use very dark colors for lines and text.

Use color effectively.

Do not forget to add labels.
  • You may forget to mention what the lines mean or your listener may not have been listening.

Copyright 1995
Tutis Vilis
Department of Physiology and Pharmacology
University of Western Ontario
London Ontario Canada

Created 28 Sept 1995
Last updated 10 January 2007
Comments welcome: