Chapter 1 highlighted the difficulties in managing machine learning projects, particularly when dealing with large datasets that do not fit well within standard Git workflows. This chapter introduces Data Version Control (DVC), an open source tool specifically designed to handle data versioning alongside your code, helping to address these challenges.

We will start by examining different approaches to versioning data before concentrating on DVC's mechanics and how it integrates with Git. You will learn how to:

• Initialize DVC within an existing Git repository.
• Use dvc add to start tracking data files and directories.
• Configure remote storage (like AWS S3, Google Cloud Storage, or Azure Blob Storage).
• Use dvc push and dvc pull to synchronize your data between your local machine and remote storage.
• Switch between different versions of your data that correspond to specific Git commits.

The chapter includes practical steps and concludes with a hands on exercise where you will apply these commands to version a sample dataset. By the end of this chapter, you will be equipped to implement effective data versioning in your machine learning projects using DVC.