Clutter free with Kids is a book about owning less and living more. It challenges parents to reconsider the common more is better mentality. It calls us to reevaluate the role consumerism plays in our lives. It invites us to find new life apart from the relentless pursuit of material possessions. And it encourages us to become not just clutter free, but more intentional in life and parenting.
Joshua has a great blog called Becoming Minimalist.
He is a great writer, really easy and enjoyable to read.
Its available on amazon as a download or can be ordered as a paperback too.