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title: Overview
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Blocks are the atomic building blocks of a typebot chat. You can chain any blocks together to create complexe conversation flows. When you drag and drop a block in the typebot flow, by default it will be inserted into a group that can have a title. Blocks are always contained in groups.
There are multiple block categories to make it easier to find the right block for your needs:
## Bubbles
Bubble blocks are used to show bubbles that can be used to display information to the user.
## Inputs
Input blocks are used to ask the user for input. It will stop the conversation and for the user to provide input.
## Logic
Logic blocks are used to perform background operations. They are not visible to the users.
## Integrations
Integration blocks are used to trigger external services operations.
Interested in implementing your own integration block? Head over to [The
Forge](/) to easily create your block.