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# Basics

This repository contains reference documentation on the basic concepts of the Cosmos SDK. 

1. [Anatomy of an SDK Application](./app-anatomy.md)
2. [Lifecycle of a transaction](./tx-lifecycle.md)
3. [Accounts](./accounts.md)
4. [Gas and Fees](./gas-fees.md)

After reading the basics, head on to the [Core Reference](../core/README.md) for more advanced material.