"In promotion and advertising, a testimonial or show consists of a person´s written or spoken statement extolling the virtue of a product. The term "testimonial" most commonly applies to the sales-pitches attributed to ordinary citizens, whereas the word "endorsement" usually applies to pitches by celebrities. Testimonials can be part of communal marketing. Sometimes, the cartoon character can be a testimonial in a commercial." - (en.wikipedia.org 15.06.2021)
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