These are some books written by members of the meetup.
Julia Silge & David Robinson
Paul Dix
Cathy O'Neil & Rachel Schutt
Bryan Lewis and Michael Kane
Jeroen Janssens
Richard Cotton
Chris Fregly & Antje Barth
Wes McKinney
Andrew Gelman & Jeronimo Cortina
Hadley Wichkam
Tony Fischetti
Andrew Gelman, John B. Carlin, Hal S. Stern, David B. Dunson, Aki Vehtari & Donald B. Rubin
JD Long
Harlan Harris, Sean Patrick Murphy & Marck Vaisman
Hadley Wickham
Drew Conway & John Myles White
Q. Ethan McCallum
Mike Dewar
JJ Allaire
Andrew Gelman
Rob Hyndman
Daniel Y. Chen
Jared P. Lander
Andrew Gelman & Deborah Nolan
Max Kuhn & Kjell Johnson
David Robinson
John Myles White
Andrew Gelman & Jennifer Hill
Max Kuhn