Exercises in Programming Style, Second Edition

One task, forty ways to think about a program. In Exercises in Programming Style, Cristina Videira Lopes takes the familiar problem of counting word frequency and uses it to reveal how much a program’s shape depends on the style behind it. The result is a thoughtful, example-led look at programming choices—not a contest to crown one style the winner.

Compare the styles through one shared task

Keeping the computational problem constant makes the differences easier to see. Each chapter sets out a style’s constraints, presents a program, and then explains how its parts work together. That recurring structure gives readers a practical basis for comparing approaches rather than encountering each one as an isolated definition.

From historical approaches to neural networks

The 40 styles are arranged in ten sections, spanning historical and basic styles, function composition, objects and object interaction, reflection and metaprogramming, adversity, data-centric programming, concurrency, interactivity, and neural networks. The range makes room for both foundational ideas and approaches used in more specialized areas of software design.

Programming concepts in context

Many chapters also discuss a style’s place in systems design or the historical circumstances in which it emerged. These perspectives help connect code structure to the broader ideas behind it. The second edition updates the examples to Python 3 and adds material on neural-network styles.

For programmers who like to compare, not just copy

This book will interest practicing programmers who want to broaden their perspective on program organization, as well as readers in advanced computer science and software engineering courses. It is especially rewarding for those who enjoy asking not only “Does this work?” but also “What does this way of writing it make easier—or harder—to see?”

Explore programming styles side by side and develop a sharper vocabulary for discussing how software is designed.