I like Simple Abundance by Sarah Ban Breathnach:
Simplicity does not mean making do with less, but appreciating the important things more. It means making deliberte decisions to surround yourself only with objects that inspire, comfort, soothe and serve you. Paring down to those essentials is more than just cleaning, organizing, or rearranging. Clearing away the clutter is a spiritual endeavor made up of choices, not chores, and the process itself can be as satisfying and empowering as the results: With every decision, you are creating a calm, clear space for your self. You are making room for wonderful new gifts to come into your life, such as order, serenity, and creativety.