index 6a9fec7..8404f76 100644
@@ -20,4 +20,11 @@ the first four are from [anthropics/skills](https://github.com/anthropics/skills
- **[Markdown to EPUB Converter](https://github.com/smerchek/claude-epub-skill)** — converts markdown/chat summaries into EPUB ebooks. by @smerchek
- **[youtube-to-ebook](https://github.com/zarazhangrui/youtube-to-ebook)** (387 stars) — YouTube transcripts to EPUB. also in [[creative-and-media]].
- **[translate-book](https://github.com/deusyu/translate-book)** (610 stars) — translates entire books using parallel subagents. also in [[communication-and-writing]].
-- **[qiaomu-anything-to-notebooklm](https://github.com/joeseesun/qiaomu-anything-to-notebooklm)** (737 stars) — multi-source content (WeChat, YouTube, PDF, web) to NotebookLM.
\ No newline at end of file
+- **[qiaomu-anything-to-notebooklm](https://github.com/joeseesun/qiaomu-anything-to-notebooklm)** (737 stars) — multi-source content (WeChat, YouTube, PDF, web) to NotebookLM.
+
+## see also
+
+- [[official]] — the four document skills (docx, pdf, pptx, xlsx)
+- [[creative-and-media]] — video, presentations, and visual content
+- [[communication-and-writing]] — content creation and book translation
+- [[data-and-analysis]] — CSV analysis, data exploration