Influencers offer brands the ability to deliver the 'right' communication and marketing messages to a specific target audience. This is one of the first textbooks to explore the phenomenon of influencer marketing and how it fits within marketing communications to build brands and their communities. Across four core sections, this book brings together the key theory and practical implications of this new marketing tool: how it works as part of communications campaigns, including how to select the right influencers and measure their success, the dark side of influencer marketing, and the legal and ethical framework. Readers will gain a comprehensive understanding of influencer marketing from the perspectives of influencers, agencies, brands, and platforms. This 2nd edition has been fully updated to refresh and add content on agency recruitment, brand-influencer partnerships, analysis of cultural differences and cross-border promotions in China, Egypt, India, Nigeria, Pakistan, and South