Slide Master:
When we want all our slides to contain the same fonts and images (such as logos), we can make those changes in the Slide Master, and they'll be applied to all our slides.
Handout Master:
• We can use the Handout Master tab, to edit the appearance of presentation handouts.
• It includes the layout, headers and footers, and background.
• Changes made to the handout master appear on all pages of the printed handout.
Notes master:
The notes master allows us to customize, how our presentation looks, when printed out with notes.