# Cards
The user have the following metrics (except points):
* points farmed per hour;
* [custom value](/tgtaps-docs/features/custom-value.md);
* [points per tap](/tgtaps-docs/blocks/clicker-game/click-button.md).
These metrics can be improved with the help of the cards.
**Features:**
* Cards can have an image, name and description.
* Cards grouped by categories.
* Cards can improve one of three metrics: points farm per hour, custom value and points per tap.
* Cards can have many levels of improvement.
* Cards can be depended on each other. For example, the card "CEO" may require card "Management" with the level #10.
## How to add cards levels from CSV
You can add card levels in a batch (from Google Sheets, for example). Create column in Google Sheets which consist of “points cost” and “improvement value” (max energy, points per tap, custom value, etc.):
Click "add levels from CSV":
Insert data from this column to the card sidebar:
Click “Add levels from CSV”:
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