BTL Topic index
A living archive
The 1% Book Shelf
Most business and tech books are 20 percent signal, 80 percent padding. The 1% Book Shelf is where I track the one or two ideas from each book that actually changed how I work — or the ones that looked promising and didn’t survive contact with real systems.
Every entry is a short review: what the book argues, what held up against thirty years of running infrastructure, what didn’t, and the single takeaway worth stealing. No summaries, no affiliate links, no five-star theatre. If a book only gives me one usable idea, that’s still a good book — and that one percent is what ends up here.
The working lens
Look for the system beneath the story.
Ideas earn their place here by being useful after the presentation ends and the real work begins.
01 Follow the consequences
02 Keep people in the system
03 Test it against reality
The working index
Ideas worth carrying into the work.
Start with the lead essay. Then follow whichever question feels most useful now.
-

Difference Isn’t the Landmine. Justification Is.
Open article ↗: Difference Isn’t the Landmine. Justification Is.Difference doesn’t damage teams. The story you build afterwards to justify your reaction to it does — the reframe worth taking from All the Difference.
-

Human Magic: Leading with Wisdom in an Age of Algorithms
Open article ↗: Human Magic: Leading with Wisdom in an Age of AlgorithmsThe 1% Book Shelf — Human Magic by Johan Roos (Routledge, 2026). Most technology shifts changed how we work. This one changes who decides. For decades the deal…
-

ikigai book review by Héctor García & Francesc Miralles
Open article ↗: ikigai book review by Héctor García & Francesc Miralles📖 Read or skip? ikigai book review Skim it — and ignore the four-circle diagram that made it famous, because that diagram isn’t in the book. There’s one…
-

When Networks Become Players
Open article ↗: When Networks Become PlayersA Beta Tester Life review of Sungwook Kim’s Game Theory for Intelligent Network Control Paradigm, and why autonomous infrastructure needs incentive design.
-

Supercommunicators Is A Leadership Book About Alignment, Not Charisma
Open article ↗: Supercommunicators Is A Leadership Book About Alignment, Not CharismaA Beta Tester Life review of Charles Duhigg’s Supercommunicators, exploring leadership, AI adoption, trust, and conversation alignment.
-

Constraints make us better
Open article ↗: Constraints make us betterOn David Epstein’s Inside the Box, and why the most useful AI, delivery and governance work of the next two years will be done inside deliberate, well-shaped boxes.…
-

Progressive Delivery: The Missing Loop in DevOps
Open article ↗: Progressive Delivery: The Missing Loop in DevOpsRead or skip? Read, especially if you work in product, DevOps, platform engineering, Agile delivery, AI adoption, or organisational change. This is not just a book about feature…
-

The 1% Bookshelf #01 — Unreasonable Hospitality by Will Guidara
Open article ↗: The 1% Bookshelf #01 — Unreasonable Hospitality by Will Guidara📖 Read or skip? Read. If you lead a team, build a brand, or care how people feel after they’ve left the room — read it twice. Why…
-

Book Review – Lead with AI Stay Human.
Open article ↗: Book Review – Lead with AI Stay Human.Lead With AI Stay Human Is A Book About The Leadership Identity Crisis How Modern Leaders Orchestrate Enterprise Value by Peter Whealy AI has a way of turning…
-

Genius at Scale
Open article ↗: Genius at ScaleDiscover why Harvard research shows innovation is no longer a solo act. Learn the Architect, Bridger, Catalyst framework from Genius at Scale and how to apply it in…
Change the lens
The useful questions refuse to stay in their lane.
Move sideways through the archive. The strongest connections often appear between categories.
Still carrying a question?









