# Overview

This section will help you understand what virtual assistants are, what they can be used for, and how NTT Data eva conversational AI can help you. 

If you want to learn more about the basics of virtual agents, follow this link:

{% content-ref url="overview/virtual-agents" %}
[virtual-agents](https://docs.conversational-ai.syntphony.com/user-guide/_eva-3.4.1_1/using-eva/overview/virtual-agents)
{% endcontent-ref %}

If you want to have an overview of eva, follow this link:

{% content-ref url="overview/basic-concepts" %}
[basic-concepts](https://docs.conversational-ai.syntphony.com/user-guide/_eva-3.4.1_1/using-eva/overview/basic-concepts)
{% endcontent-ref %}