El mazo de un libro
Cada pregunta es también una tarjeta, programada a lo largo de días. Voltea unas cuantas de un libro real.
Cargando el mundo de la demo…
Espacio para girar, 1–4 para calificar.Toca la tarjeta para girarla y luego toca una calificación. Tu progreso pasa a tu cuenta cuando te registras.
Cómo un libro se convierte en cuestionario
Subes una vez; desde entonces el libro hace las preguntas.
Sube el libro
Un EPUB o un PDF de hasta 50 MB, en cualquier idioma. La no ficción funciona mejor: un libro de negocios, una historia, un libro de texto, un manual.
Sus ideas clave se convierten en el temario
El libro se lee en busca de cada idea clave, capítulo a capítulo, y cada una recibe preguntas. Dos lectores del mismo libro son preguntados sobre las mismas ideas.
Juégalo, o voltéalo
Recorre el mundo y combate, o practica las mismas preguntas como tarjetas programadas a lo largo de días. Las falladas vuelven; lo que sabes se aparta.
Libros que puedes jugar ahora mismo
Mundos públicos construidos a partir de libros conocidos: elige uno y empieza, sin subir nada.
Aún no hay libros en español, así que te mostramos los libros en inglés. Libros en otros idiomas
Blue Ocean Strategy: How to Create Uncontested Market Space and Make the Competition Irrelevant
de W. Chan Kim and Renée Mauborgne
This book shows how companies break free from cutthroat competition by creating new market space instead of fighting over existing demand, using tools like the strategy canvas and the four actions framework. In this world you practice mapping value curves, reaching noncustomers, sequencing price and cost decisions, and overcoming organizational hurdles to execute bold strategic moves.
EN122 personajes · Jugar
High Output Management
de Andrew S. Grove
Andrew Grove's classic distills managerial work into production principles: leverage, output, and the systems that make teams effective. In this quiz world you practise planning, running one-on-ones and reviews, delegating with accountability, and designing processes that catch problems early and motivate real performance.
EN101 personajes · Jugar
$100M Offers: How to Make Offers So Good People Feel Stupid Saying No
de Alex Hormozi
A practical guide to building offers so compelling that price stops being an objection, covering value creation, guarantees, scarcity, urgency, and bonuses. In this world you practice calculating lifetime value, deconstructing the value equation, and assembling all the pieces into a single Grand Slam Offer.
EN121 personajes · Jugar
Zero to One: Notes on Startups, or How to Build the Future
de Peter Thiel
Peter Thiel argues that true progress comes from creating something genuinely new rather than copying what already works, and shows how monopolies, strong founding teams, and definite plans drive lasting success. In this world you practice spotting hidden opportunities, building a founding team with real cohesion, and designing sales and distribution strategies that actually work.
EN101 personajes · Jugar
What They Don't Teach You at Harvard Business School
de Mark H. McCormack
A veteran deal-maker distills the unwritten rules of business savvy: reading people, negotiating with leverage, managing time, and shaping perceptions. Players practice sizing up situations, handling office politics, and building client trust through practical, street-smart tactics rather than textbook theory.
EN96 personajes · Jugar
The Personal MBA: Master the Art of Business
de Josh Kaufman
A practical guide to the core ideas behind value creation, marketing, sales, finance, and systems thinking that drive any successful business. Explore twenty-three worlds covering everything from customer psychology to financial statements, and practice applying timeless mental models to real decisions.
EN111 personajes · Jugar
Make: The Indie Startup Manual
de Pieter Levels
A practical guide to building a solo internet startup from personal problem to profitable exit, written by the maker behind Nomad List and Remote OK. You'll practise spotting ideas from your own life, launching without hype, growing organically, monetizing directly, automating operations, and negotiating a sale.
EN121 personajes · Jugar
Founding Sales
de Pete Kazanjy
A practical guide to building an early-stage sales function from scratch, covering mindset, prospecting, narrative, negotiation, and hiring. Play through founder-led selling: crafting a compelling story, handling objections, managing pipeline, and scaling a repeatable go-to-market process.
EN121 personajes · Jugar
The Mom Test: How to Talk to Customers and Learn if Your Business is a Good Idea When Everyone is Lying to You
de Rob Fitzpatrick
A practical guide to running customer conversations that surface truth instead of polite lies, so you can validate a business idea before building the wrong thing. In this world you practice spotting empty compliments, anchoring vague claims into specifics, finding the right people to talk to, and steering conversations toward real commitments.
EN146 personajes · Jugar
Traction: How Any Startup Can Achieve Explosive Customer Growth
de Gabriel Weinberg and Justin Mares
This book distills how startups find their first customers and scale growth, covering 19 traction channels and the Bullseye framework for testing and prioritizing them. In this world you practice choosing, testing, and doubling down on the channels that actually move the needle for your business.
EN311 personajes · Jugar
The Subtle Art of Not Giving a F*ck
de Mark Manson
This book argues that a good life comes not from chasing endless positivity but from choosing your struggles and values with care. Through Mark Manson's blunt, story-driven philosophy, you'll practice telling meaningful problems from trivial ones, taking responsibility without blame, and facing failure and mortality as sources of clarity rather than fear.
EN116 personajes · Jugar
Deep Work: Rules for Focused Success in a Distracted World
de Cal Newport
Cal Newport argues that the rare ability to focus without distraction is becoming increasingly valuable, and shows how to cultivate it. Explore rituals from Carl Jung to modern professionals, and practise strategies like scheduling, shutdown routines, and cutting shallow work to build lasting concentration.
EN136 personajes · Jugar
How To Win Friends and Influence People
de Dale Carnegie
A classic guide to human relations, teaching how to make friends, win people over, and lead without causing resentment through honest appreciation and genuine interest. Players practice recognizing key techniques through real stories about historical figures, salespeople, and everyday encounters.
EN161 personajes · Jugar
Thinking in Systems: A Primer
de Donella H. Meadows
A clear guide to how stocks, flows, and feedback loops shape everything from thermostats to economies. In this world you practice spotting system traps like escalation and eroding goals, and learn to find the leverage points that create lasting change rather than quick fixes.
EN161 personajes · Jugar
Peak: Secrets from the New Science of Expertise
de Anders Ericsson and Robert Pool
This book explains how deliberate practice, not innate talent, builds extraordinary ability in music, chess, sports, and everyday skills. In this world you practice identifying strong mental representations, structuring focused feedback loops, and applying purposeful training to your own goals.
EN156 personajes · Jugar
The Lean Startup
de Eric Ries
This book explains how startups can use validated learning, rapid experimentation, and the Build-Measure-Learn loop to build products people actually want, instead of following rigid business plans. In this world you practise identifying leap-of-faith assumptions, designing MVPs, reading actionable metrics, and deciding when to pivot or persevere.
EN156 personajes · Jugar
Principles: Life and Work
de Ray Dalio
Ray Dalio distills the life and management principles behind his personal journey and Bridgewater's success, covering radical truth, meaningful relationships, and systematic decision-making. In this world you practise embracing reality, using the 5-step process, weighing believability, and diagnosing problems to build your own effective machine.
EN161 personajes · Jugar
The Art of War
de Sun Tzu
A classic treatise on strategy, leadership, and the calculated use of force, translated by Lionel Giles. In this quiz world you practice reading its core teachings on planning, deception, terrain, timing, and espionage, sharpening how you assess situations and make decisions under pressure.
EN28 personajes · Jugar
The Almanack of Naval Ravikant: A Guide to Wealth and Happiness
de Eric Jorgenson
A collection of Naval Ravikant's tweets, essays, and interviews on building wealth through leverage and specific knowledge, and finding happiness through presence and acceptance. Players practice applying his principles: recognizing forms of leverage, judging long-term partnerships, and building daily habits for a calmer, clearer mind.
EN116 personajes · Jugar
The ONE Thing: The Surprisingly Simple Truth Behind Extraordinary Results
de Gary Keller and Jay Papasan
This book explains why narrowing your focus to a single priority produces better results than juggling many goals, and dismantles common myths about willpower, balance, and multitasking. In this game world you practice asking the Focusing Question, time blocking your most important work, and building the habits that protect your ONE Thing.
EN131 personajes · Jugar
Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones
de James Clear
This book explains how tiny, consistent changes compound into remarkable results, using the Four Laws of Behavior Change to build good habits and break bad ones. In this world you practice designing your environment, stacking habits, tracking progress, and using identity-based thinking to make lasting change stick.
EN161 personajes · Jugar
Think Faster, Talk Smarter: How to Speak Successfully When You're Put on the Spot
de Matt Abrahams
A practical guide to mastering impromptu speaking, from calming nerves to structuring thoughts on the fly. You'll practice frameworks for toasts, pitches, feedback, and apologies while learning to listen actively and speak with authentic confidence in any unplanned moment.
EN161 personajes · Jugar
The MrBeast Production Academy
de Jimmy Donaldson
An internal playbook distilling a decade of lessons on making high-retention YouTube videos, from ideation and hooks to production logistics and team culture. In this world you practice spotting virality metrics, crafting strong hooks, structuring formats for retention, and running a production with clear communication and priorities.
EN22 personajes · Jugar
The Adweek Copywriting Handbook
de Joseph Sugarman
Sugarman breaks down the psychology behind persuasive writing, from crafting irresistible first sentences to triggering the 31 buying motivators that drive purchases. Players practice building buying atmospheres, overcoming objections, and structuring copy that flows like a slippery slide toward the sale.
EN161 personajes · Jugar
Por qué un cuestionario supera a un resumen
Un resumen te dice lo que decía el libro. Un cuestionario averigua si aún lo sabes.
Recordar, no reconocer
Releer y subrayar te entrenan para reconocer una frase. Una pregunta te hace producirla, y eso es recordar.
Espaciado a lo largo de semanas
El mazo de tarjetas programa cada pregunta según lo bien que la sabías, con días de separación, para que un libro leído en enero siga siendo tuyo en junio.
Capítulo a capítulo
Los mapas siguen el libro, así que puedes ponerte a prueba con el capítulo que acabas de terminar y volver más tarde a los anteriores.
Tus libros, tu idioma
Las preguntas salen en el idioma del libro, y vale cualquier texto: una traducción, un libro de texto, un informe, un clásico de una biblioteca gratuita.
Cuándo otra herramienta encaja mejor
Tres casos en los que quieres otra cosa.
El libro tiene DRM
Un archivo de Kindle o de Apple Books no se puede subir: está bloqueado, no es un EPUB normal. Un EPUB sin DRM o un PDF de la editorial o de una biblioteca funciona.
Es una novela
La ficción da pocas ideas clave que preguntar, y las preguntas se convierten en trivialidades de la trama. La no ficción, los libros de texto y los manuales son donde brilla.
Quieres un cuestionario para tus lectores
Esto te pregunta a ti sobre un libro que estás leyendo. No construye un cuestionario de marketing que un autor envía, ni una prueba de lectura para calificar a una clase en papel.
Hecho con libros de verdad
Cifras en vivo, directas de la base de datos.
Preguntas
¿Acepta EPUB?
¿Puedo subir un libro de Kindle?
¿Funciona con novelas?
¿Qué libros ya se pueden jugar?
¿En qué se diferencia de un resumen?
¿Es gratis?
Ver también
Gratis para empezar
Juega los mundos gratuitos todo lo que quieras. Paga una vez cuando quieras meter tus propios libros.
- Juego ilimitado en los mundos públicos gratis
- Una muestra de los mundos premium: 5 batallas, 10 preguntas de la torre y 10 preguntas de minijuegos en cada uno
- Duelos en directo con amigos, compañeros o el ordenador
- Los cinco modos, en cualquier dispositivo
- Tu progreso, guardado en tu cuenta
Precio de lanzamiento para los primeros 100 compradores o hasta el 31 dic 2026; después, 49,99 US$. Quedan 98 de 100.
- Convierte tus propios apuntes en juegos (3 créditos de libro a juego)
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- Todos los mundos premium, todos los mapas, los cinco modos
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- Clases: comparte los mundos que generas con tus alumnos, que se unen gratis
- Todas las actualizaciones futuras incluidas
¿Vas a convertir más libros después? Los créditos de libro a juego extra cuestan 4,00 US$ cada uno, con descuentos del 5% a partir de 3, del 10% a partir de 5 y del 20% a partir de 10.
Termina el libro. Quédate con el libro.
Súbelo y deja que te haga preguntas.
Pregúntame sobre mi libro