> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Where to start

> A quick map of the Fundamentals tab — two plain-language series, Core Banking and Accounting, and which one to read first for what you want to learn.

The **Fundamentals** tab is where you build intuition before touching anything Lerian-specific. It holds two short, plain-language series that approach the same subject — keeping a trustworthy record of money — from two angles.

<Card title="Accounting" icon="money-bill-wave" href="/en/fundamentals/accounting/what-is-accounting" horizontal>
  Explains the language underneath it: assets, liabilities, debits, credits, and how the books stay balanced.
</Card>

<Card title="Core Banking" icon="building-columns" href="/en/fundamentals/core-banking/what-is-core-banking" horizontal>
  Explains how a ledger system works: accounts, balances, movements, and the jobs a banking platform has to do.
</Card>

They sit side by side because they answer different questions. One shows you the *machine*; the other shows you the *grammar* that machine is built on.

## Which one first

***

| If you want to…                              | Start with                            |
| -------------------------------------------- | ------------------------------------- |
| Understand how a ledger works                | **Core Banking**                      |
| Understand the accounting language behind it | **Accounting**                        |
| Understand both                              | **Accounting**, then **Core Banking** |

<Tip>
  If you're unsure, start with **Accounting**. The vocabulary it teaches makes everything in Core Banking — and the rest of the docs — easier to follow.
</Tip>