The most effective B2B marketing videos include explainer videos that simplify complex products, customer testimonial and case study videos that build trust, product demos that showcase functionality, thought leadership interviews that establish authority, and culture videos that humanize your brand. Short-form social videos work well for awareness and engagement on LinkedIn. Webinar recordings provide deeper educational value. Animated videos are excellent for explaining abstract concepts. The key is matching video type to buyer journey stage—awareness content should be shorter and educational, while consideration-stage content can be more detailed and product-focused.