* Signed bookplate * Young dancer Nia Sioux was only nine years old when she stepped into stardom as one of the original cast members of Lifetime’s reality TV show Dance Moms. Nia learned new choreography week after week and competed against dancers from across the country as well as at her own studio. Perhaps her greatest obstacle was suffering through her dance teacher’s ranking of the girls against each other in her infamous pyramid, where Nia spent the majority of her time on the bottom—all in front of an audience of millions.