It can be difficult for clients who are new to software to understand what we do, and especially how we do it, or why we do it the way we do it.
While iOS developer Jesse Squires recently posted specifically about the development of the Swift programming language, this quote from the intro is the best explanation of the software development process I've come across. It's probably something you will want to share with your clients, too.
“Companies march vigilantly toward an MVP. But after 1.0 there is no finish line, there is no bottom of the 9th inning. There are more bugs to be fixed. There are new releases ahead. The march continues, because software is not a product, it is a process.”