# Personal Handbooks
Personal Knowledge Bases allow compound learnings and make it easier to discover new abstractions or connections between concepts. Some interesting properties that a good Personal Knowledge Base should have:
- Simple, Open Source and multi-platform. Works offline, uses plain text files, and has a backup mechanism similar to [[Git]].
- Focus on capturing ideas and content as fast as possible.
- Should be managed as a graph:
- Nodes are notes or smaller graphs. [Notes should be atomic, concept-oriented and densely linked](https://notes.andymatuschak.org/z4SDCZQeRo4xFEQ8H4qrSqd68ucpgE6LU155C).
- Bidirectional links connecting nodes.
- Nodes can have several parents (concepts).
- Users can remix and connect ideas in multiple overlapping hierarchies.
- [Each concept can be linked to external content (video, book, audio)](https://www.notion.so/Models-bb0f4bfd3cd140b3a00cd955e61003f9).
- Content can have tags (related concepts)
- Can be made public.
- Personal Knowledge bases can be personal [ontologies with similar core components (individuals, classes, attributes, relations, ...)](https://en.wikipedia.org/wiki/Ontology_components).
## Open Source Projects
- [Logseq](https://logseq.com/).
- [Dendron](https://www.dendron.so/).
- [Foam](https://foambubble.github.io/).
- [Noosphere](https://github.com/subconsciousnetwork/noosphere)
## Handbooks
- [Nikita Voloboev](https://github.com/nikitavoloboev/knowledge)
- [Daryll Santos](https://github.com/daryllxd/lifelong-learning)
- [Daniel Schildt](https://github.com/d2s/knowledge)
- [Julian Shapiro](https://www.julian.com/)
- [Gordon Brander](http://gordonbrander.com/pattern/)
- [h0p3](https://philosopher.life/#h0p3)
- [Karlicoss](https://beepb00p.xyz/exobrain/)
- [Victoriano Izquierdo](https://www.notion.so/Learning-81054755c60d4d628e3f1cc7a95e4e7f)
- [Piotr Stojanow](https://wiki.stojanow.com/)
- [Sergio Gasquez](https://sergiogasquez.notion.site/sergiogasquez/Sergio-Gasquez-Personal-Wiki-0d2f9be521094316aa12fcbbc5d20fab)
- [Paul Copplestone](https://paul.copplest.one/knowledge/)
- [Hiran Venugopalan](https://hiran.in/notes)
- [Liz Code](https://lyz-code.github.io/blue-book/)
- [Simon Späti](https://brain.sspaeti.com/)
- [Jonathan Porter](https://eatsleepdata.com/)
- [Jacky Zhao](https://jzhao.xyz/)
- [Pelayo Arbués](https://pelayoarbues.github.io/)
- [Tom Critchlow](https://tomcritchlow.com/wiki/)
- [Mario López](https://brain.drmario.tech/)
- [Alex Turner](https://turntrout.com/)
## Compilations
- [Meta Knowledge GitHub repository](https://github.com/RichardLitt/meta-knowledge)
- [Second Brain Collection](https://github.com/KasperZutterman/Second-Brain).
- [Best Of Digital Gardens](https://github.com/lyz-code/best-of-digital-gardens)