| Issue | Why It Matters | |-------|----------------| | | Most recent books (including the 2024 edition) are still under full copyright. Sharing or downloading them without permission is illegal in many jurisdictions, including Sri Lanka. | | Quality & Safety | Unofficial PDFs may be low‑resolution, water‑marked, or contain malware. | | Reliability | Channels can disappear, links become dead, and the content may be taken down after a DMCA notice. | | Ethical Considerations | Authors, illustrators, and publishers invest time and resources. Unauthorized distribution reduces their ability to earn a living. |