There are many economics manuals, but very few (or none) quite like this one, which is targeted not at economics students or even students of other subjects, but at the public in general. We are in a world dominated by the economy, and it is therefore important to know its mechanisms. The experience of the first edition, 10 temas para comprender la economía (Ten Topics for Understanding the Economy) (Ed. Roure) has proved very useful for teaching economics to students in all areas, which has led to this second revised and expanded edition.