# Key Concepts of Glue

Glue is designed to make communication flexible and focused through two key organizing principles: **threads** and **groups.**

Threads and chats can be sent to any combination of groups and people.

### Threads

**Threads** **contain topic-focused conversations.** They can be shared with multiple groups, individuals and Glue AI. Your relevant threads are tracked in your personal [inbox](https://docs.glue.ai/inbox/inbox).

Threads are named with subjects, and contain multiple messages and at least one other participant. Thread participants can include groups and individuals within your workspace, and guests (external users).

Any message can be converted into a new thread at any time to keep the conversations organized and relevant.

### Groups

**Groups** **organize people and collections of threads** for departments, teams or projects. Each group has its own group chat that is private only to group members.

Groups exist within a [workspace](https://docs.glue.ai/workspaces/workspaces), but can include both workspace members and [guests](https://docs.glue.ai/groups/guests) (external users).

You can invite anyone to a Glue thread or group using their email address.

## A More Organized Work Chat

Glue might look familiar to you at first — and that’s by design. We are not reinventing the entire UI of a work chat app. We are changing how conversations are organized. People and AI have more effective conversations with focused context.

Glue threads provide **focused context** for more effective conversations

- Quickly find the thread of conversation you need by asking Glue AI
- Follow only the threads that are important to you in your inbox
- Invite individuals and groups to specific threads instead of an entire channel
- Archive threads when you no longer need to follow the conversation
- Collaborate with Glue AI directly within a thread — same as interacting with other LLMs like ChatGPT.