To fully understand how to manage subscribers in Pardot, Salesforce's automation tool, we must be clear about a number of points that we list below:
What is a public list?
A list should be made public if you want it to be available in the preference center . A public list allows subscribers to select whether or not they want to join the list via the preference center page.
Creating public lists in Pardot is simple. Just like whatsapp number philippines creating any list, you can do it from Automations → Targeting Lists → + Add List but it must be marked as “Public List”.
When you mark a list as “Public List” you can add:
Label = is information that the prospect will see
Description = is public, the prospect will see it
Name = is internal
public list
What is the Preference Center and how do public lists appear in it?
The Email Preference Center is a page where your potential customers opt in, subscribe, or unsubscribe to public lists set up in Pardot – that is, they choose what they want to receive in their inbox.

pardot preference center
Gaining insights from each customer or prospect will help you generate relevant messages, satisfied customers, and personalization. It also allows you to better understand your contact list, allowing you to target more effective marketing campaigns based on their preferences.
By product line or by broad categories (depending on your business structure/product offering) are ways to organize your preference center. Here's an example of how to organize by category: