> For the complete documentation index, see [llms.txt](https://calnix.gitbook.io/eth-dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://calnix.gitbook.io/eth-dev/introduction.md).

# Introduction

- [What is a Transaction](https://calnix.gitbook.io/eth-dev/introduction/what-is-a-transaction.md)
- [Accounts and Signing](https://calnix.gitbook.io/eth-dev/introduction/accounts-and-signing.md)
- [What is a smart contract](https://calnix.gitbook.io/eth-dev/introduction/what-is-a-smart-contract.md)