# Reversed Y axis
Reversed Y axis charts have the y reference at the upper left corner instead of the standard upper right corner; this kind of charts allows you to visualize real situations such as pressure or temperature values in the ocean, where the yaxis starts at the value of 0 meter on the top.
#### Tip
Set the value of the [reversed](https://api.highcharts.com/highstock/yAxis.reversed) property to true to enable reverse the yaxis.