Please help me with these graphs I dont understand the concepts

EXHIBIT 5.1 Three Generic Strategies Competitive Advantage Low Cost Superior Perceived Position Value by Customer Broad Target Overall Broad Markets Served Market Cost Leadership Differentiation Narrow Target Differentiation Markets Cost Focus Focus Source: Adapted from Competitive Strategy: Techniques for Analyzing Industries and Competitors by Michael E. Porter, 1980, 1998, Free Press.EXHIBIT 5.6 Stages of the Industry Life Cycle Sales/ A Profits O Unit Sales Profits Time - Stage Introduction Growth Maturity Decline Factor Generic Differentiation Differentiation Differentiation Overall cost strategies Overall cost leadership leadership Focus Market growth Low Very large Low to moderate Negative rate Number of Very few Some Many Few segments Intensity of Low Increasing Very intense Changing competition Emphasis on Very high High Low to moderate Low product design Emphasis on Low Low to moderate High Low process design Major Research and Sales and Production General functional development marketing management and areals] of finance concern Overall Increase market Create consumer Defend market Consolidate