David Higgins' book "Demystifying Fundraising Funnels," a guide for nonprofit organizations seeking to increase their donor base and revenue through digital marketing. The excerpt features testimonials from various individuals praising Higgins' work and emphasizing the importance of adopting "real world" online marketing tools, like digital funnels, to reach a new generation of donors. The book provides a practical framework for building effective fundraising funnels, analyzing target audiences, and creating compelling content that connects with potential donors on an emotional level. Higgins stresses the importance of utilizing social media platforms, email campaigns, and influencer marketing to bridge the communication gap between nonprofits and potential donors, ultimately leading to increased funding and a broader impact.