Sources and notesCog & Cuppa →

The Thinkers Behind the Method — Kotter, Sinek, Knaflic, Cairo

Further reading for anyone who wants to go deeper

10 May 2026 · Read the essay →

The outside claims this piece leans on, and where they come from. Each note says what the source looked at, so you can judge how far it stretches.

  1. Cairo is Knight Chair in Visual Journalism at the University of Miami; argues visualisations are tools for thinking that carry ethical responsibilities; key works The Functional Art, The Truthful Art, How Charts Lie

    University of Miami School of Communication faculty profile; Cairo, The Functional Art (New Riders, 2012), The Truthful Art (2016), How Charts Lie (W. W. Norton, 2019) (2012; 2016; 2019)

    Alberto Cairo's faculty profile and his three books on information graphics, honesty in visualisation, and misleading charts.

  2. Knaflic is founder and CEO of Storytelling with Data; her core message is that there is a story in your data but your tools do not know what it is

    Knaflic, Storytelling with Data: A Data Visualization Guide for Business Professionals (Wiley, 2015), Introduction; storytellingwithdata.com team page

    Knaflic's 2015 practitioner guide to presenting business data, and her company's team page.

  3. Kotter (born 1947) is Professor Emeritus at Harvard Business School

    Harvard Business School faculty profile, John P. Kotter

    HBS faculty profile: Konosuke Matsushita Professor of Leadership, Emeritus.

  4. Kotter's core insight: change requires leadership, not just management, and emotional engagement matters as much as logical argument

    Kotter and Cohen, The Heart of Change (2002); Kotter, 'What Leaders Really Do', Harvard Business Review (1990)

    Kotter and Cohen's case-study book arguing that organisational change is driven more by what people feel than by analysis.

  5. Kotter's key works: Leading Change, The Heart of Change and A Sense of Urgency

    Kotter, Leading Change (HBR Press, 1996); Kotter and Cohen, The Heart of Change (HBR Press, 2002); Kotter, A Sense of Urgency (HBR Press, 2008) (1996; 2002; 2008)

    Three books on organisational change: one of them, The Heart of Change, co-written with Dan S. Cohen.

  6. Leading Change set out an eight-step model, beginning with creating a sense of urgency and ending with anchoring change in organisational culture; Kotter studied why change efforts fail

    Kotter, 'Leading Change: Why Transformation Efforts Fail', Harvard Business Review, March-April 1995; expanded as Leading Change (1996)

    Kotter's HBR article on eight common errors in corporate transformation efforts, which became the eight-stage change model.

  7. Sinek key works: Start With Why; Leaders Eat Last; The Infinite Game

    Sinek, Start With Why (2009); Leaders Eat Last (2014); The Infinite Game (2019), Portfolio/Penguin (2009; 2014; 2019)

    Three books by Simon Sinek on purpose-led leadership.

  8. Sinek's TED Talk on the Golden Circle is fifteen minutes long

    Simon Sinek, 'How great leaders inspire action', TEDxPuget Sound, September 2009 (TED.com talk page)

    Simon Sinek's 2009 TEDx talk introducing the Golden Circle (why, how, what).

  9. Sinek: inspiring leaders communicate from the inside out (why, how, what); most organisations do the reverse

    Sinek, 'How great leaders inspire action', TEDxPuget Sound (2009); Start With Why (Portfolio, 2009)

    Sinek's Golden Circle model: organisations that communicate purpose first inspire more than those that lead with product.