I think the Power Girl Showcases were included in a separate Power Girl tpb:

http://www.amazon.com/Power-Girl-Geoff-Johns/dp/1401209688/ref=sr_1_3?ie=UTF8&qid=1394456216&sr=8-3&keywords=power+girl

There was also a Huntress paperback collecting the first half of Huntress' backup series from the Wonder Woman title, which included the three part Huntress/Power Girl team up from that series:

http://www.amazon.com/Huntress-Dark-Knight-Daughter/dp/1401209130/ref=sr_1_1?ie=UTF8&qid=1394456657&sr=8-1&keywords=dark+knight+daughter

Last Edited By: quincyjb Mar 10 14 9:06 AM. Edited 1 times.