Tolong jelaskan mengenai Serial utama dari How to Train Your Dragon (buku)

How to Train Your Dragon (2003)

How to Be A Pirate (2004)

How to Speak Dragonese (2005)

How to Cheat A Dragon's Curse (2006)

How to Twist A Dragon's Tale (2007)

A Hero's Guide to Deadly Dragons (2008)

How to Ride A Dragon's Storm (2009)

How to Break A Dragon's Heart (2010)

How to Steal A Dragon's Sword (2011)

How to Seize A Dragon's Jewel (2012)

How to Betray A Dragon's Hero (2013)

How to Fight a Dragon's Fury (2015)

How To Train Your Viking, by Toothless the Dragon (2006)

The Day of the Dreader (2012)

The Incomplete Book of Dragons: A Guide to Dragon Species (2014, UK) / The Complete Book of Dragons: A Guide to Dragon Species (2014, US)