Portrait of an unknown woman, by Egon Josef Kossuth.
In colloquial English, the word “over” is commonly used to mean “above” or “more than.”
For example: “There are over fifty books in that library.” Yes, “more than” might be better, but we know what it means: it means there are fifty-three books, or sixty-two books, or one thousand three hundred eighty-eight books. In other words, the number is greater than fifty.
In Marketingspeak, however, “over” has a specialized meaning. It is placed in front of a number to indicate, “Here comes a number.”
For example (an Internet search result): “Faithful art reproductions by Egon Josef Kossuth. Choose from over 1 artworks by the famous artist.”