While free PDFs circulate online, consider that Ariely’s work is widely available via:
Note: Predeciblemente Irracional is the Spanish title. If you download an English PDF titled Predictably Irrational , it is not what you searched for. The best Spanish PDF is the published by Ariel / Planeta , translated by Francisco López Martín . Avoid amateur translations from 2009; they miss the humor.
The best free summary in Spanish is available on sites like Resúmenes de Libros or YouTube channels like Libros para Emprendedores . For a detailed chapter-by-chapter guide, search for "Predeciblemente Irracional resumen por capítulos."
We all have "self-control problems." Ariely gave students three deadlines for three papers: spaced, self-imposed, or single final deadline. The spaced group performed best. Use external tools (like commitment devices) to fight procrastination.
The book identifies several "predictable" flaws in our reasoning: Predictably Irrational - shabanal.com