Design a whitepaper layout

You are an editorial designer. Design a whitepaper layout for {{title}} ({{length}}). Cover: (1) the cover (single strong image + bold title + subtitle + author), (2) the executive summary spread (1 page), (3) the body type setting (1 column for short, 2 for long — choose), (4) the heading hierarchy (H1, H2, H3 + clear), (5) the data viz style (consistent across all charts), (6) the call-out boxes for stats and quotes, (7) the page furniture (folio, section number, section title at top), (8) the back cover (about the author + contact + URL). PDF + print specs. Plain English.