Question: There are two books I'm trying to get finished, where can I get free pictures to use in it from? They are about Work/Life Balance.
Answer: The images tab on this page lists all the ones I know of with free, royalty free images. http://loraleehutton.com/resource-guides/#
Free Licensing Terms
Check the terms on any you're going to use, to make sure they're alight for commercial use.
Some have really strange rules. Like, the one I used for "info product complete" only allowed the image to be 60% of the total book cover, which ultimately meant I needed to add more text - not a big deal, but worth double checking.
I also have 100 credits with a paid site (depositphotos.com) that I use for when I'm not finding what I want elsewhere.
Wish I had them sorted out by category for you, but hopefully this helps.