My bio says Marketing Legend and as Mohamed Ali once said "It aint bragging if it's true." (it is not mentioned in the article.)

But since you did mention it in your comments:

It's part of my brand my company is called Legendary Marketing and if you look at my LinkedIn testimonials you will see its not an idle boast. I've also written over 20 books on sales and marketing. People in my industry do refer to me as "legend" what started as a joke became reality.

Anyway I don't take it all to seriously I am considering

Legend is in Own Mind

as the title of my half finished bio.

Either way I appreciate your thoughtful responses

Best

AW