KELLY KLEIN’S POOL DIP: Kelly Klein has taken the plunge once again with the publication of “Pools: Reflections” the follow-up to her popular “Pools” coffee table book. Klein, who spent four years curating the photos (some of which are her own shots) asked longtime friend and fellow photographer Lisa Eisner to co-host the launch luncheon with Barneys Beverly Hills, which sells the book in its Chelsea Passage. “I don’t get out to California much but I knew Lisa would be perfect; she’s a great part of what makes it interesting here,” said Klein, whose five-year-old son was born in California. Klein also invited her friend Catherine Keener, who mingled with guests including Nina Clemente, Pam Skaist-Levy, Gela Nash-Taylor, Tierney Gearon, Jacuqi Getty, Roman Alonso, Tony Melillo, and Laura Cunningham. “She’s just the best, she’s my girl,” said Keener of Klein, who will make book tour stops in Houston, Florida and Barneys New York next week. Between parenting and publishing, Klein said she barely had time for the New York fashion scene this year. “I went to Calvin Klein and that was it. You’d have to really convince me to get me to a show these days,” she laughed.