Acknowledgments

We are very grateful to all the people who helped make this book possible. First and foremost, the whole Manning team, especially our fearless development editor, Helen Stergius, and Brian Sawyer and Marjan Bace, for giving two kids a chance. Thanks to all the reviewers whose comments helped make this a better book: Gonzalo Fernando Huerta Cánepa, Jan Vinterberg, Karim Alkama, Khaled Tannir, Larissa Kun, Manjula Iyer, Martin Beer, Meredith Godar, Michael Jensen, Michal Konrad Owsiak, Peter Lawrence, Pavol Kral, Philip Coates, Rebecca Jones, Rocio Chongtay, and Rodney Weis. Thank you to Aleksandar Dragosavljević, Robin Dewson, Gonzalo Fernando Huerta Cánepa, and Matko Hrvatin in development, Corbin Collins, Alyson Brener, Kevin Sullivan, David Novak, Janet Vail, Marija Tudor, Richard Sheppard, Leslie Haimes, and Mary Piergies in production, and Candace Gillhoolley and Susan Harkins in post-production for helping us publish our first book!

Thank you Rick Kughen for being the first person to embrace this book. This book wouldn’t be here without you.

Our friends who cheered us on include Emma, who asked how the book was going almost every day, and James for the Overwatch breaks. Also all our friends at Coderdojo, including Alex, Megan, Ben, and Finn (plus their awesome parents who run the group—Frank and Josh), for brainstorming ideas and giving us coding advice.