Because not the same people write it.
They are totally different things the episodes don't tell you how they became friends. The monster high books start from the beginning. I would chose the books though.
Monster High has new episodes on the website every Thursday. Make sure to go to the official website or monster high you tube channel, hope this helped.
500
Ou can find them on monster high's YouTube channel, or on monsterhigh.com under videos.
Monster High is only on Nickalodean in America but to watch the episodes just go to the monster high homepage and click videos enjoy hope i hlped?
11.88
go to monster high.com and click videos
Not yet known. Hope this helps! >_<
The genre is fantasy.
There has been two but there will be three on frieday the 13
You can find some full episodes of Monster Quest at: http://www.history.com/content/monsterquest/videos To see full episodes you'll want to look for six buttons towards the top right, in two rows of three. The full episodes is the furthest button on the right in the top row.
The Monster High webisodes are made for all ages.