<!--
order: false
parent:
order: 3
-->
# Basics
This repository contains reference documentation on the basic concepts of Ethermint.
1. [Accounts](./accounts.md)
2. [Gas and Fees](./gas.md)
3. [Lifecycle of a transaction](./transactions.md)
4. [Photon](./photon.md)
5. [JSON-RPC Server](./json_rpc.md)
After reading the basics, head on to the [Core Reference](../core/README.md) for more advanced material.