Question: how to watch how to train your dragon in order?
Answer: How to Train Your Dragon (2010) ... 
Legend of the Boneknapper Dragon (2010 TV Short) ... 
Book of Dragons (2011 Video) ... 
Dragons: Gift of the Night Fury (2011 Video) ... 
DreamWorks Dragons (2012–2014) ... 
DreamWorks Dragons (2012–2014) ... 
Dragons: Dawn of the Dragon Racers (2014 Video) ... 
Dragons: Race to the Edge (2015–2018)