Erica: The book is about the power of female friendship to build successful businesses, to drive successful businesses. We wrote it because this is what we've experienced in working together. We've been working together almost nine years now. Over the years, our proudest career accomplishment has been the partnership we've built and the way that it’s survived all of the highs and lows. There have been so many highs and so many lows of building a business together. When we started looking around, we were like, there's so many other people who have also taken this path, both in starting their own companies or organizations or working within larger organizations. We wanted to shed light on that. You don't really hear the story of women partnering that much. The classic tale is women are catty. They don't work well together. That's not what we had experienced or what we were seeing in the world around us.