Programming often (short for programming or coding) is the process of designing, writing, testing, debugging and maintaining the source code of computer programs. The code is written in the programming language in which one or more. The purpose of programming is to create a set of instructions that the computer used to perform certain operations or show the desired behavior. The process of writing source code often requires expertise in many different subjects, including knowledge of the application domain, specialized algorithms and formal logic.

In computer programming, readability refers to the ease with which a human reader can comprehend the purpose, control flow, and operation from the source code. This affects the quality of the above aspects, including portability, usability and maintainability is most important.

Readability is important because programmers spend most of their time reading, trying to understand and modify existing source code, rather than writing new source code. Unreadable code often leads to bugs, inefficiencies, and duplicated code. A study found that a few simple readability transformations made code shorter and drastically reduce the time to understand it.

Follow a consistent programming style often helps readability. However, the reading is more than just programming style. Many factors, having little or nothing to do with the ability of the computer to efficiently compile and execute the code, contribute to read.