Use the same theme for each slide, involving font, size,
style, background colour and title bar.
Use clearly contrasting colours for font and
background.
Use a large font, for easy reading.
Keep the variety of sound effects, action buttons and
animations to a minimum (as it can distract your
audience). Use effects only to highlight key aspects
/summary points.
Rather than a linear slide show, set up a contents/home
page which is linked to each section.
Plan a flow chart before you link your pages (to avoid
your confusion).
Rather than putting too much text on one slide, add
another page or use links.