How To Behave When Being “Stolen Your Effort" There is a few times that you are “stolen your effort” in your work

I like the O=E-R example below from Thanh

We place a little bit of our selves in our work and the work becomes us. It reflects who we are and when someone else takes credit for it or "steals it" then that is very personal.

I have found that when that has happened to me I would make sure the one key person who needs to know is made aware of it. I only do this when the "O" is substantial. That does not happen too often.

What is more important is the next thing you create. How do you receive credit for what you have done and protect yourself from it being stolen. For example if working on a new and creative you may begin to tell selected people (i.e. upper management or boss) of importance that you are working on a project and that you expect thee project to add a lot of value. Setting that expectation up front with key people will give you the ownership. If someone steals the the upper management/boss will ask what you had to do with the project. It make sit transparent.

Also in the past, where I had a problem with a specific person that did this I would confront them. If co-worker then I would state it up front but if it was a boss I would take a diffident approach. With a boss I would humbly ask for recognition (well maybe not as humble as I should).

While there are a lot of people who promote themselves with everyone they meet.I found it works best to only promote yourself with key people who have influence and in those cases act humbly.

Good luck