The Richest Man in Babylon

Reviewed by Diario de un Inversor · UpdatedJune 13, 2026

Our review

«The Richest Man in Babylon» is the oldest personal-finance manual still widely read: published in 1926, it builds its lessons on parables set in Mesopotamia around 2000 BC, a narrative distance that makes the medicine easier to swallow. The central thesis is almost uncomfortably simple: poverty is not caused by bad luck but by the habit of spending everything one earns. Clason develops this idea through Arkad, Babylon's wealthiest citizen, who explains to his neighbors the seven «cures» for a lean purse. The primary cure — saving at least one tenth of every income before paying anything else — anticipated by decades what we now call «pay yourself first». The book reads more as fable than technical treatise: there are no calculations or return tables. Its most obvious limitation is that it ignores taxation entirely and knows nothing of modern instruments; nobody in Babylon needed to understand an index fund. Even so, its value lies in embedding a save-before-you-spend mindset, a principle that behavioral research has repeatedly validated. The most widely circulated editions run around 200 pages and can be read in two sittings.

Key takeaways

• Set aside at least 10% of every payment before covering any expense, without exception.
• Every coin saved becomes a worker capable of generating new income when put to use.
• Avoiding consumer debt is not austerity — it is the prerequisite for capital to grow.
• Wealth is built through habits repeated over years, not occasional strokes of luck.

Fact

The book was originally published in 1926 as a series of pamphlets distributed by American banks to encourage saving among their customers.