A trend in Bloomreach Engagement is an analytical tool that enables you to visualize how often a particular event occurred over time by plotting the event on a timeline.
You can watch this video to get an overview of the basic features of trends. However, if you prefer reading, everything will be covered in this guide too.
# How can trends empower you in understanding your data
The main benefit of using Trends is their simplicity of use. You only need to specify the events and time period. Then, the tool will display a chart that helps you visualize the time progression of the events. The usual use cases are depicting how page traffic, website visits, or the number of purchases develop over time. However, sometimes you can also use them for more advanced analyses, such as visualizing how the number of purchases and the number of purchased items change together over time, as can be seen in the picture in the following section.
# How to Create a Trend Analysis
## 1. Creating a New Trend Analysis.
## 2. Adding Events
## 3. Editing Events
## Other Settings
To learn more about **Date**, **Customer**, and **Event filters**, please read the [Filtering data](🔗) article.
### Event/Customer Toggle
On the right side above the 'Event selector' box, you'll find a toggle that allows you to switch the chart's y-axis between the number of events on a given day or the number of unique customers.
To display event attributes in time, please use [Reports](🔗).