Fluidic oscillators are generators of periodic fluid motion operating without moving mechanical components or elastically deformed parts. Years ago, this would not have been a topic worthy of writing a book. Fluidic oscillators were invented eighty years ago and practically forgotten soon after. Their recent reinvention, making them the topic of many research works and publications, is due to their capability to generate microbubbles in a very simple manner. The use of small bubbles can increa