How to Write a Leadership Book as a Coach or Consultant (Without Writing the Same Book as Everyone Else)

Ask a leadership coach who their book is for and you often hear some version of “leaders who want to bring out the best in their people”. That sentence is the problem. It describes the reader of every leadership book already in print, and the person browsing yours has probably read three of them.

You have something those books do not: years of watching particular people get particular things wrong, often in the same order. The work is getting that onto the page before it dissolves into advice everyone already agrees with.

This guide is about finding the angle. For testing a central claim and choosing a book type, see how to write a thought leadership book; executive coaches with sponsor agreements should also read how to write a book as an executive coach.

Why a book “on leadership” is already lost

Josh Bernoff lists four reasons business books fail, and two are the leadership coach’s trap. One is no defined audience; his advice is to “pick an audience and focus on their needs”. The other is lack of differentiation, tested by whether you can truthfully finish the sentence “This is the first book that…”. If you cannot, he says, you are “just another book”.

We could not find a reliable count of leadership titles published each year, and you do not need one. Search your working title in an online bookshop. If your table of contents could be swapped into three of those books without anyone noticing, the angle is not there yet.

Google offers a warning. Its re:Work guide to the research behind great managers says Project Oxygen set out to test a view some Googlers held in the early 2000s, that “managers don’t actually matter”, using more than 10,000 data points from reviews and surveys. The behaviours it found include “Be a good coach” and “Communicate effectively”. Read cold, those are platitudes; they carry weight only because of the data underneath. Repeat them without evidence of your own and you borrow the wording but none of the weight.

Our view, which some publishers would dispute: on the leadership shelf, a generic book is not a weaker version of a good one. It is invisible.

Step 1: Narrow the reader until you can picture their week

Narrowing means choosing a role and a situation, not a demographic. “Millennial managers” is still a crowd. “Engineers in their first year of managing the people they used to sit beside” is a person. Here are five readers the generic leadership book serves badly.

Reader	The moment that hurts	What they want from a book
First-time managers	Managing people who were peers last month	Words for the first hard conversation
New CEOs	The first months with an inherited board and team	What to decide early and what to leave alone
Technical leaders promoted from specialist roles	Being judged on the team’s output, not their own work	When to step in, how to review without redoing
Leaders of remote teams	Hearing about a problem late because nobody shares a room	Meeting rhythms, written decision habits
Founders handing over	Appointing a CEO or COO and actually letting go	What to hand over first

A narrow reader can still travel far: Julie Zhuo’s The Making of a Manager is pitched at someone in the position its author was in when she became “a rookie manager at the age of twenty-five”, as its publisher puts it.

Our decision rule: pick the reader you have worked with most, not the one you find most interesting. Twenty clients in the same situation give you patterns; three give you anecdotes. Coaches almost always narrow too little, so a choice that feels slightly too small is probably right.

Step 2: Write about a moment, not a topic

Leadership is a topic. A moment is a stretch of working life when the usual habits stop working: the first performance conversation with a former peer, the board meeting after a missed quarter, the week a remote team misses a deadline nobody flagged.

Michael Watkins’s The First 90 Days is built on a moment. Harvard Business Review Press opens its description with the claim that “moving into a new role is the biggest challenge a manager will face”. Its readers range from people “being promoted from within” to those “tapped as CEO”. The moment does the narrowing.

Three questions separate a moment from a topic:

1. Can the reader tell they are in it? “I have just been promoted over my old team” is recognisable. “I want to be more authentic” is not.
2. Does it start and end? A transition or a handover does. “Communication” does not.
3. Does it force a decision? If not, the reader has no reason to open the book this month.

Step 3: Build evidence that goes beyond your best story

Your three best workshop stories are good openings and poor proof. A sceptical buyer wants to know whether the pattern holds beyond the client you remember best. Think of evidence as a ladder:

• Rung 1: a single story. Vivid and easy to dismiss as the exception.
• Rung 2: patterns you have counted. Hypothetically, “of the 40 newly promoted engineering managers I coached between 2020 and 2025, 27 were still reviewing every line of their team’s code six months in” is a claim. “Many new managers struggle to delegate” is a platitude.
• Rung 3: your own instrument data. Aggregated, anonymised results from assessments or 360 reviews you ran.
• Rung 4: published research, opened and quoted exactly. Use it to frame or test your pattern, not to replace it.

Leadership books often go wrong here, because the same few figures circulate second-hand. Take Gallup’s best-known one. In the 2015 Gallup Business Journal piece by Randall Beck and Jim Harter, the claim is that “managers account for at least 70% of the variance in employee engagement scores across business units”. That is about differences between teams, not a claim that managers cause 70% of anyone’s engagement, which is how it is often quoted.

Date newer figures. As of November 2026, Gallup’s page on how managers affect team productivity reports that manager engagement fell to 22% globally in 2025 and that only 44% of managers worldwide have had management training. Use the training figure only if the chapter is really about training, not because it sounds serious.

The rule we hold to: one study you have read properly beats ten you found quoted in other books. Copy the exact sentence, page title and date into your notes; our guide on keeping AI from inventing facts in your book covers checking claims while drafting.

Your best evidence is not entirely yours

Session notes and 360 feedback came from clients. The ICF Code of Ethics, in effect since 1 April 2025, defines confidentiality as protecting “any information obtained in or around the coaching relationship”, with written client consent among the exceptions. Standard 2.2 asks for a clear agreement on what is shared “among all parties involved”, which includes sponsors, and standard 2.5 extends coaches’ obligations to the software and artificial intelligence they use.

Counted patterns across forty clients carry far less risk than one distinctive story. Our guide to client stories and case studies in a book covers consent requests and anonymisation. This is not legal advice; if a contract is unclear, ask before you write the chapter.

Step 4: Give every chapter a tool the reader can use on Monday

Watkins’s publisher notes that each chapter of The First 90 Days includes “checklists, practical tools, and self-assessments”. Aim for that: leadership readers usually pick up a book because something is going wrong now. End each chapter with at least one of these:

• A diagnostic: five questions that tell readers which version of the problem they have.
• A script: the opening lines of a hard conversation, with what to do if it goes badly.
• A decision rule: “If two people bring you the same conflict twice, stop mediating and set a joint deadline.”
• A one-page template: a handover map, a meeting rhythm, a decision log.
• A team exercise: something the reader can run in a 30-minute meeting.

A chapter that cannot end in a tool is an essay. We would cut it, even if it is well written. If your tools connect into a model, our guide on creating a framework for a book shows how to test it, and how to write a business book chapter covers where the tool sits in the chapter.

Step 5: Run every chapter through the platitude test

Leadership writing slides towards sentences nobody could disagree with: wise to write, filler to read.

Before: “Great leaders communicate with clarity and empathy, especially during times of change.” After: “In your first month as manager, write to each report and name one thing you will stop doing that your predecessor did, and why. New managers who change things silently tend to be read as erratic, and the note costs you ten minutes.”

The second version can be wrong. That is why it is useful.

If you draft with AI, watch for this: general-purpose models default to the consensus view, as we explain in why AI-written books sound generic.

A worked example (hypothetical): from “leadership” to a book with an edge

Imagine a leadership coach, formerly an engineering manager, who has spent nine years coaching engineers promoted into management at software companies. Her first working title was Leading With Purpose.

• Reader: engineers in their first year of managing people who were their teammates.
• Moment: the first six months, when they keep doing technical work and their team waits on them.
• Counted pattern: she counts how many clients still held final say on technical decisions six months in, and what changed for those who let go.
• Research: Google’s Oxygen list includes “Have key technical skills”. She treats it fairly: her argument is about using that skill to advise, not to do the work.

Her chapter plan, with one tool each:

Chapter	Tool at the end
1. The week your calendar stops being yours	A one-week time audit
2. The pull request you should not review	A decision rule for when to step in technically
3. Your first conversation with a former peer	An opening script
4. Setting standards you no longer enforce yourself	A one-page definition-of-done template
5. Your first underperformer	A diagnostic: skill, will or setup
6. Managing up when your manager is non-technical	A fortnightly update template
7. Month six: are you managing yet?	A self-assessment

Notice what is missing: no chapter on vision, no chapter titled “Trust”, no claim she cannot support. The book is smaller and far easier to recommend.

Checking whether your material supports the angle

Next, check whether your material can carry the plan; usually it can for some chapters and not others. You can reread years of notes against the plan, or use a ghostwriter’s interviews. Guided software is another option. WritebookAI runs a source analysis on documents you upload (PDF, Word or text files; notes can be pasted) and shows what your material covers and what is missing. It builds a chapter plan with beat sheets, and when a chapter needs a client result or a statistic you have not supplied, the draft leaves it out and asks you instead of inventing it. It will not choose your angle or clear confidentiality for you: remove names and identifying details before uploading, and you still approve every chapter and check every claim. If you would rather hand the whole book to someone, a ghostwriter suits you better.

Three pages to write before chapter one

Page one: the reader and the moment. One paragraph on a specific person in a specific stretch of their working life, and what they must decide. If “leaders” could replace them without changing anything, start again.

Page two: the evidence ledger. The patterns you can count and where they came from, the consent status of every story, and the research you have actually opened.

Page three: the tool list. Seven to ten chapter titles, each with the tool the reader leaves with.

A thin page is your next piece of work, and far cheaper to find now than in chapter six. To test the angle against the market, see the main-site guide to authority book positioning.