The guest lecture by August Jackson focuses on competitive analysis using various analytical frameworks including SWOT/TOWS, industry analysis (Porter's Five Forces, STEEP, PEST), and market trend analysis via Gartner and disruption models. It emphasizes the importance of evaluating factors such as accuracy, resource efficiency, and stakeholder analysis to inform decision-making. Additionally, the presentation covers current trends in the beverage industry and the impact of economic and social factors on consumer behavior.