We selected 10 of our best exercises from 6 albums to help you build your Agile engineering skills. You will hunt for smells in legacy code, refactor a design using automated tools, remove duplication across subclasses, write microtests against legacy code, perform test-driven development on two problems, change a design to use a listening fake, refactor a design to fake a singleton, and peform our mock object exercise.

Automating Scenarios Safely builds on Specifying Scenarios Safely, and teaches you how to take scenarios you have collaborated on and convert them into executable tests for greenfield or legacy systems.

Master collaborative Behavior-Driven Development; the art and craft of test-driving your requirements. You will learn to write effective scenarios with the Gherkin language and how to automate those scenarios to drive new feature development while creating a safety net of regression tests.

How do you distinguish great software design from poor software design? Code Smells go beyond vague programming principles by capturing industry wisdom about how not to design code. If you'd like to become skilled at Refactoring, you need to develop your ability to identify Code Smells. Study a collection of important Code Smells and compare each one to a simpler, cleaner design.

What does poor software design look like and how can you safely clean it up? Learn a catalog of common code smells and how to produce cleaner, better designs. Then learn the art of refactoring: how to safely improve the design of code using proven strategies and tactics.

This album starts by looking at the concept of systems and how an external perspective helps create the best stories. You'll learn the Role-Action-Context template, ten criteria for effective stories, and ideas for kick-starting story-writing when you feel stuck. You'll explore a variety of ways to split and simplify stories to help you ensure that your release is as valuable as it can be. You'll get a job aid to remind you of the key ways to split stories.

How long does it take you to push a change live to your users? Are your scheduled software deployments a source of frustration, stress and downtime? Continuous Deployment pioneer Timothy Fitz (formerly of IMVU) shows how to take the pain out of software delivery so you can focus on making happy customers. Learn how to set up a Build-Test-Deploy pipeline, incrementally release even large features and schema changes, and effectively monitor your deployments.

Become an excellent software designer with five exceptional albums in this popular box set. You will learn to recognize bad smells in code and safely clean up those smells by learning and applying dozens of useful refactorings and essential design patterns.

This is our pick of the nine most important Design Patterns that every good object-oriented software engineer ought to know. Pattern gurus Joshua Kerievsky and Brian Foote guide you through this interactive, hands-on album, filled with video, quizzes, and challenging exercises. Learn Composed Method, Template Method, Factory Method, Strategy, Composite, Builder, Command, Null Object and Adapter.

This trilogy is packed with thoroughly engaging instruction on classic design patterns, up-to-date guidance on modern patterns and hands-on exercises from our popular Design Patterns Workshop and Joshua's award-winning book, Refactoring to Patterns.

The landmark Design Patterns is one of the best-selling computer science books ever. Simple constructors are the most basic way to construct objects, but real code often needs more sophisticated approaches. See how experts apply Template Method, Factory Method, Prototype, and others. The challenging exercises will stretch your skills.

Our second volume of Design Patterns focuses on important variations on a classic object-oriented theme: how to best delegate or forward to cooperating objects, rather than using brute-force inheritance, to get things done. We explore a common theme in object-oriented design: favoring delegation over inheritance. The album draws from the Gang-of-Four''s Structural and Behavioral patterns and uses them as a starting point.

Broaden your knowledge with State, Observer, Null Object, and more. Our final volume of Design Patterns features some of the most elaborate and exotic patterns. You'll find mainstays like State and Observer, along with patterns with more challenging reputations, like Command and Visitor.

How do you write microtests against old, complicated code? Redesigning the code can help, yet often you''ll still need to deal with awkward collaborators: calls to objects that are slow or difficult to test. Vanquish awkward collaborators by learning a family of fakes, including simulators, stubs, listening and talking fakes, mocks and auto-mocks.

Do you work with CRRAP: Code Requiring Remedial Attention Promptly? Legacy code is everywhere, so it helps to learn how to work with it effectively. Experience how experts use proven patterns to conquer legacy code challenges and then practice your skills on an extensive, real-world exercise.

If you want to spend less time debugging or manually testing, and more time programming faster or making important design changes, you're ready for microtesting! A microtest (also known as a unit test) automatically verifies a single behavior of a single object.

Microtesting is the art of shipping more functionality faster by producing small, high-speed tests to clarify, validate and minimize your code base. In this four-album box set, we work from the most basic concepts of microtesting through the techniques of faking and mocking into the art of test-driven development and how to tame legacy code.

Did you ever want to turn a messy, complex software design into simple, safe code? Refactoring provides the tools and techniques for safely improving your software designs. Immerse yourself in Refactoring exercises featuring our "look-over-your-shoulder" technology that gives you expert feedback. Build strong Refactoring skills by learning how to use powerful tools and proven techniques.

Specifying Scenarios Safely teaches you how to use Behavior-Driven Development to improve your software development capability: You will see how collaboration is the keystone practice that helps you explore and document the most important scenarios for your system.'

How can you increase the speed and joy of software development while decreasing the stress of modifying code? Test-Driven Development can help! TDD is a rhythm, a design technique, a development process and a revolution, all in one.

Our best-selling box set is used around the globe by leading companies to help their developers become skilled at test-driven development. You'll thoroughly improve your design skills by learning code smells, refactoring, microtesting, the art of test-driven development, faking & mocking and how to work effectively with legacy code.