"Free PDF" repositories are often bait for malware or phishing scripts.
Pearson often runs sales on eBooks. Purchasing a legitimate copy ensures you get the official errata and supplementary code samples. GitHub Code Samples: While you shouldn't download the book itself there, the official code examples "Free PDF" repositories are often bait for malware
If you are studying for an interview or a project right now, focus on these pillars covered in the book: Composition vs. Inheritance: "Free PDF" repositories are often bait for malware
Here are a few GitHub repositories that claim to host The Object-Oriented Thought Process 5th edition PDF: "Free PDF" repositories are often bait for malware