These are some of my favorite works by Vermeer. His paintings have such a sense of calm, but at the same time mystery. He captures a moment so perfectly, but you are left wondering exactly what he has captured. Mistress and Maid, for example, leaves me trying to guess what is in the letter. The woman looks unsure or even afraid to take it.
Please take some time and look at these, don't just skim over them. His complete works can be found on EssentialVermeer.com if you'd like to see more.