---
title: "Introduction"
slug: "introduction-to-data-types"
updated: 2024-05-04T18:28:06Z
published: 2024-05-04T18:28:06Z
canonical: "help.mail-and-deploy.com/introduction-to-data-types"
---

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

# Introduction to Data Types

### General

Every value in a Mail & Deploy expression has one of the following data types:

- [Boolean](/release34/docs/boolean)
- [List](/release34/docs/list)
- [Number](/release34/docs/number)
- [String](/release34/docs/string)
- [Date-Time](/release34/docs/date-time)
- [Color](/release34/docs/color)