Baker's first book was published at the age of 13 in 1999 on the rise and fall of Gwrych Castle, Abergele by Gwasg Helygain. Baker went on to publish further books on Gwrych Castle in 2000, 2003 and 2006. Through research at Royal Institute of British Architects it was discovered that the marble staircase at Gwrych Castle had been designed by Detmar Blow as part of a major refurbishment of the castle in 1914. This research was presented as a lecture at the National Museum of Wales, Cathays Park, Cardiff, as part of their St. David's Day celebrations in 2012.