Borrowed Trust: The System Behind Influencer Impact explains influencer marketing as a trust-transfer system embedded in the modern marketing funnel, from awareness through post-sale retention. Written for marketing professionals and students who want clarity beyond tactics, it gives step-by-step guidance to make decisions that actually move the business.Too many books treat influencer marketing as a set of disconnected trends. This book breaks that approach and gives you a system you can use immediately.You'll learn how to: Map influencer marketing to every stage of the funnel, from brand awareness to retentionMake strategic choices before building a campaign, including brand alignment, creative fit, and measuring the right outcomesChoose the right platforms, from short-form video to niche communities and emerging audio or gaming spacesIdentify and select the right influencers, including B2B, long-term partners, and affiliate programsRun campaigns effectively, from outreach and agreements to paid vs organic strategiesTrack and optimize success with practical KPIs for each stage of the funnelUse tools and software, including sourcing platforms and automation, to scale campaigns without losing controlTake the long view, integrating influencer marketing into a sustainable growth strategyEach chapter combines real-world cases with actionable frameworks. This book gives you tools you can use immediately and frameworks to guide your decisions as your marketing strategy grows.