Lorethorn Academy of Product Spellcraft
Spellcraft
Wizard of Product
Julie Zhuo
Julie Zhuo
Enchantress of Design
Shreyas Doshi
Shreyas Doshi
Master of Strategic Spells
Nick Turley
Nick Turley
Keeper of the Crystal
Marc Andreessen
Marc Andreessen
The Contrarian Archmage
Lenny Rachitsky
Lenny Rachitsky
⚜ The Keeper ⚜
Three towers.
Eighteen professors.
One Keeper.
Duel masters.
Build your playbook.
Rule the product realm.
Begin
Curated from Lenny's Newsletter & Podcast
The Codex Oracle
The Oracle Has Spoken
Visionary
You think in systems, futures, and possibilities before anyone else has caught up. Your superpower is the vision. Your challenge is bringing others with you.
You see what others don't. Yet.
Gibson Biddle
The DHM Keeper
100 / 100
Spellcraft
Select your opponent
Visionary
♥♥♥♥♥
Select professors
Gibson Biddle
Choose Your Opponent
← Select a professor from the panel
PM Tower
Playbook
📜
0 / 19 spells
18 professors · The Keeper
Apprentice
DEFEATED
Spell added to your Playbook
SPELL UNLOCKED
“”
—
PLAYBOOK PROGRESS
0 / 19
Spells Collected
18 Professors + The Keeper
PM Tower0 / 6
Strategy Tower0 / 5
AI Tower0 / 7
The Keeper0 / 1
Collect all 19 to become Grand Wizard
Your Playbook
✦ 0 / 19 spells collected ✦
📖 Keeper of Product Lore0 / 1 Collected
📖
Lenny Rachitsky
The Product Lore
Lenny Rachitsky
🔒
Duel Lenny to unlock
PM Tower0 / 6 Collected
📐
Gibson Biddle
DHM Principle
Gibson Biddle
🔒
Defeat Gibson
🪞
Julie Zhuo
The Design Mirror
Julie Zhuo
🔒
Defeat Julie
⚡
Shreyas Doshi
Upstream Thinking
Shreyas Doshi
🔒
Defeat Shreyas
🎭
Jules Walter
The Influence Pact
Jules Walter
🔒
Defeat Jules
🎯
April Dunford
The Positioning Code
April Dunford
🔒
Defeat April
⚔️
Marty Cagan
The Empowered Team
Marty Cagan
🔒
Defeat Tower Boss
Strategy Tower0 / 5 Collected
🧱
Chandra Janakiraman
The Strategy Block
Chandra Janakiraman
🔒
Defeat Chandra
♟️
Roger Martin
The Winning Wager
Roger Martin
🔒
Defeat Roger
🗺️
Christopher Lochhead
Category Design
Christopher Lochhead
🔒
Defeat Christopher
🔮
Marc Andreessen
The Contrarian Lens
Marc Andreessen
🔒
Defeat Marc
⭐
Hamilton Helmer
The 7 Powers
Hamilton Helmer
🔒
Defeat Tower Boss
AI Tower0 / 7 Collected
🛠️
Tal Raviv
The Modern Toolkit
Tal Raviv
🔒
Defeat Tal
📊
Aman Khan
The Eval Rite
Aman Khan
🔒
Defeat Aman
🤖
Claire Vo
The Agentic Art
Claire Vo
🔒
Defeat Claire
🏰
Nick Turley
The Trust Protocol
Nick Turley
🔒
Defeat Nick
🔬
Hamel Husain
The Eval Stack
Hamel Husain
🔒
Defeat Hamel
⚙️
Chip Huyen
Systems Sight
Chip Huyen
🔒
Defeat Chip
🧠
Dr. Fei-Fei Li
The Intelligence Arc
Dr. Fei-Fei Li
🔒
Defeat Tower Boss
Grand Wizard of Product
✦ The Dreamer's Playbook  ·  19 / 19 Spells Collected ✦
PM Tower
Collected
📐
DHM Principle
— Gibson Biddle
Collected
🪞
The Design Mirror
— Julie Zhuo
Collected
⚡
Upstream Thinking
— Shreyas Doshi
Collected
🎭
The Influence Pact
— Jules Walter
Collected
🎯
The Positioning Code
— April Dunford
Collected
⚔️
The Empowered Team
— Marty Cagan
Strategy Tower
Collected
🧱
The Strategy Block
— Chandra Janakiraman
Collected
♟️
The Winning Wager
— Roger Martin
Collected
🗺️
Category Design
— Christopher Lochhead
Collected
🔮
The Contrarian Lens
— Marc Andreessen
Collected
⭐
The 7 Powers
— Hamilton Helmer
AI Tower
Collected
🛠️
The Modern Toolkit
— Tal Raviv
Collected
📊
The Eval Rite
— Aman Khan
Collected
🤖
The Agentic Art
— Claire Vo
Collected
🏰
The Trust Protocol
— Nick Turley
Collected
🔬
The Eval Stack
— Hamel Husain
Collected
⚙️
Systems Sight
— Chip Huyen
Collected
🧠
The Intelligence Arc
— Dr. Fei-Fei Li
19 Professors Defeated  ·  3 Towers Cleared
“Most PMs read one framework and call it wisdom. You read nineteen.
You didn't just learn the game — you earned the right to change it.”
Defeated
Your Hearts Run Out
You collected 0 spells.
The Academy awaits your return.