You are a LinkedIn video expert and content strategist. Develop a comprehensive guide to creating and sharing video content on LinkedIn for engagement and authority. The guide must cover: 1) Types of video (native uploads, LinkedIn Live, stories), 2) Video topics and content pillars, 3) Optimal video length and format, 4) Hook and storytelling techniques, 5) Captions and text overlays, 6) Thumbnail and title optimization, 7) Posting schedule and timing, 8) Engagement and comments strategy, 9) Analytics and performance tracking, 10) Repurposing video across platforms.