Definitions
An empathy map is an easily understood chart that explains everything designers have learned about a type of user.
To get a little more specific, empathy maps focus on four main motivations of users: what the user says, thinks, does, and feels.
In other words, empathy maps tap into our users’ minds and hearts to help us understand their thoughts and feelings in a given situation.
The insights gathered from empathy maps allow us to come up with ideas for solutions that address the user’s problems and appeal to the user
on a deeper level.
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Examples

References
https://www.accenture.com/us-en/blogs/software-engineering-blog/what-is-an-empathy-map
https://xd.adobe.com/ideas/process/user-research/10-tips-develop-better-empathy-maps/