# Complex description

- [Glossary](/complex-description/glossary.md)
- [Opium derivatives](/complex-description/opium-derivatives.md)
- [Oracle and derivative recipes](/complex-description/opium-oracles.md)
- [Oracle and derivative registers](/complex-description/oracle-and-derivative-registrars.md)
- [Opium margin](/complex-description/opium-margin.md)
- [Opium swaps (TMtm)](/complex-description/opium-swaps-tmtm.md)
- [Opium order books](/complex-description/opium-orderbooks.md)