In the movie The Da Vinci Code there is a book written by character Robert Langdon called Symbols of Sacred Feminine so I want to know if it real as in actually published?

The book "Symbols of the Sacred Feminine" by Robert Langdon in the movie "The Da Vinci Code" is not a real book. It was created for the fictional story and does not exist in reality.

While the book explores themes of the feminine divine and symbols associated with it, these are real areas of study in history, religion, and art. However, the specific book and its contents are entirely fictional.