# Questions? We have answers.

## Summary

**Libraries** contain unique configurations of analysis features, permissions, and settings — like filters, ratios, populations, risk scores, and much more. Libraries are applied to _new engagements_ within your tenant, and help to standardize your teams workflows in MindBridge.

MindBridge provides several [libraries out of the box](https://support.mindbridge.ai/hc/en-us/articles/360056329574-MindBridge-libraries-Overview#h_01FCRXD8DJE4CA4D7HHTPMXFJ5). These default libraries can be used as-is, or they can be applied as a **base library** when [creating new custom libraries](https://support.mindbridge.ai/hc/en-us/articles/360058192113), allowing you to leverage default settings which _App Admins_ can customize as desired.

Learn about MindBridge's default libraries below, and review [Library management: Overview](https://support.mindbridge.ai/hc/en-us/articles/360056329614-Library-management-Overview) for additional details.

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## Default libraries

The following default libraries are available for use in MindBridge.

| Library name | Description | Applicable to |
| --- | --- | --- |
| [MindBridge for-profit](https://support.mindbridge.ai/hc/en-us/articles/360056329714) | This library uses the [MindBridge Account Classification (MAC)](https://support.mindbridge.ai/hc/en-us/articles/22819163288343) code system for the [account grouping](https://support.mindbridge.ai/hc/en-us/articles/360056329594) and supports all of MindBridge's ratios. | - GL analysis<br>- AP analysis<br>- AR analysis |
| [MindBridge not-for-profit](https://support.mindbridge.ai/hc/en-us/articles/360058192173) | This library uses the [MindBridge Account Classification (MAC)](https://support.mindbridge.ai/hc/en-us/articles/22819163288343) code system for the [account grouping](https://support.mindbridge.ai/hc/en-us/articles/360056329594), and accommodates _not-for-profit_ concepts such as contributions and grants. It also includes ratios specific to a _not-for-profit_ workflow, such as _Operating Reserve_ and _Change in Net Assets_. | - Not-for-profit GL analysis<br>- AP analysis<br>- AR analysis |
| [MindBridge not-for-profit with funds](https://support.mindbridge.ai/hc/en-us/articles/360058192193) | This library uses the [MindBridge Account Classification (MAC)](https://support.mindbridge.ai/hc/en-us/articles/22819163288343) code system for the [account grouping](https://support.mindbridge.ai/hc/en-us/articles/360056329594), and accommodates workflows that capture fund details and leverage fund accounting. Its structure facilitates concepts and ratios specific to _not-for-profit_ organizations that utilize funds, such as _Liquid Funds Amount_. | - Not-for-profit GL with funds analysis<br>- AP analysis<br>- AR analysis |
| [Review engagement](https://support.mindbridge.ai/hc/en-us/articles/4565771968279) | This library uses the [MindBridge Account Classification (MAC)](https://support.mindbridge.ai/hc/en-us/articles/22819163288343) code system for the [account grouping](https://support.mindbridge.ai/hc/en-us/articles/360056329594). It supports all of MindBridge's ratios and analyses, and helps to create streamlined and repeatable analytics to improve efficiency in delivering assurance over the financial statements. | - GL analysis |

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