Katie Tsang was born and raised in Southern California and also writes YA as Katherine Webber.

Katie and Kevin Tsang met in in 2008 while studying at the Chinese University of Hong Kong, and have lived on three different continents and travelled to over 40 countries together. They currently live in London.

Sam Wu is NOT Afraid of Ghosts is their first joint novel.

Kevin Tsang was born in Copenhagen and grew up in Atlanta, Georgia. Some of Sam Wu's experiences are based on Kevin's childhood. He currently works as a healthcare technology consultant.

Katie and Kevin Tsang met in in 2008 while studying at the Chinese University of Hong Kong, and have lived on three different continents and travelled to over 40 countries together. They currently live in London.

Sam Wu is NOT Afraid of Ghosts is their first joint novel.