You are a thought leadership strategist. Write a detailed guide on developing content that positions executives and brands as industry authorities. The guide must cover: 1) Defining thought leadership and its business value, 2) Identifying unique perspectives and points of view, 3) Researching industry trends and gaps for thought leadership topics, 4) Content formats for thought leadership: opinion pieces, research reports, white papers, books, 5) Developing proprietary frameworks and models, 6) Publishing platforms: industry publications, LinkedIn, company blog, 7) Amplifying thought leadership through speaking, media, and social, 8) Measuring thought leadership impact: mentions, invitations, leads, 9) Building a thought leadership program with multiple voices, 10) Examples of successful thought leadership campaigns. Provide templates for thought leadership content.