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

# Harness Docs

> Get an overview of Harness's features and how to use them.

Harness Calendar allows you to streamline how you schedule, bill, and track your finances. Pick a starting point below.

<Note>
  Harness Calendar is in active development. We are constantly adding new
  features and improving existing ones, so check out [what's new](/docs/whats-new)
  for the latest updates.
</Note>

## Get started

<CardGroup cols={2}>
  <Card title="Set up your studio" icon="" href="/docs/getting-started/set-up-your-studio">
    The first things to do after you sign up.
  </Card>

  <Card title="Key concepts" icon="" href="/docs/getting-started/key-concepts">
    How Harness thinks about students, lessons, and money.
  </Card>

  <Card title="Schedule a lesson" icon="" href="/docs/calendar/create-an-event">
    Add events and set up recurring lessons.
  </Card>

  <Card title="Send an invoice" icon="" href="/docs/billing/send-an-invoice">
    Bill a student and track what's paid.
  </Card>

  <Card title="Automate your billing" icon="" href="/docs/guides/automate-your-billing">
    Let Harness turn charges into invoices on each account's cycle.
  </Card>
</CardGroup>

<Note>
  Can't find what you need? Use the search bar at the top of the page.
</Note>