Madonna Super Fan Releases the Ultimate Encyclopedia

Madonna keeps bundled up while she takes her bike for a spin on Tuesday afternoon (November 23) in Barcelona, Spain.

The 57-year-old entertainer was also spotted stopping by the Sagrada Familia church during the day.

PHOTOS: Check out the latest pics of Madonna

A Madonna fan named Matthew Rettenmund recently published the ultimate guide to the superstar in the form Encyclopedia Madonnica, an encyclopedia dedicated to all things Madonna.

The fan originally released the book in 1995 but he has now updated it to include new facts about Madonna, including interviews with Desperately Seeking Susan publicist Reid Rosefelt and her former stylist Maripol.

10+ pictures inside of Madonna biking in Barcelona…