Celebrities in the field of music and sports are featured in these volumes. Facts and photographs are the primary attractions to this series’s mix of these singers and athletes. Readers will learn interesting tidbits such as Demi Lovato’s dogs once stopped a robbery, Simone Biles’s favorite color is purple, Taylor Swift loves cats, one member of BTS learned English by watching “Friends,” Cristiano Ronaldo owns 20 sports cars and Patrick Mahomes puts ketchup on his Thanksgiving turkey. Of course, some space is provided for their careers - Swift has changed from country music to pop and Ronaldo has scored over 800 career goals. But the purpose is to let fans know the little-known facts, hence the title “What You Never Knew About.” There are many other biographies on these individuals, many of which are more comprehensive. Also, given the fact these are living, active people, much of the information is dated (or will be) by the time they make it to the shelves. For instance, emphasis is placed on Lovato’s preference for nonbinary gender identification; she has recently added the female pronouns. Mahomes will have had two children. The photographs are clear if not large or outstanding. ­VERDICT Because there are several biographies on these subjects already available, many of which provide more information, purchasers should consider whether the subjects’ local fan base is large enough to justify purchase.