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The G.R.E.A.T. Retention BOOK

Strategies for Human Loyalty in an AI-Driven World
Release date: 01/02/2026

About the book

The G.R.E.A.T. Retention Book is a practical guide to what happens after the sale — the phase where loyalty is either built or quietly lost.

Drawing on behavioural psychology and real-world experience, the book explores how relationships evolve after a transaction, and why emotion determines whether customers stay, return, or advocate.

Structured around the G.R.E.A.T. Retention Method™, it shows how post-sale moments can be intentionally designed rather than left to chance — turning short-term satisfaction into long-term belief, habit, and advocacy.

Sector-specific editorial adaptation

Tailored content, examples, and positioning so the book speaks directly to your members or clients — reinforcing shared language, relevance, and long-term relationships.

Foreword

If you want to build a valuable brand, read this book. If you think marketing is easy, don’t.

The task of marketing is to build valuable brands — with all that means in terms of competitive advantage — by first creating brand awareness, then buildingongoing loyalty, and ultimately turning your customers into your ambassadors.

Rooted in behavioural analysis, this landmark book takes the reader on a journey through the emotional architecture of loyalty and then moves us towards human-centred marketing to build brand advantage.

The author offers a clearly articulated and intellectually robust analysis of how to build customer ambassadorship. More importantly, he shows how retention strategies can be designed into your systems, and how the psychology of the relationship between any product and its customers can be developed and utilised to build brand advocacy — turning marketing persuasion into brand partnership.

A must read.

ANDREW MARSDEN
FORMER PRESIDENT
THE MARKETING SOCIETY