Crisis on Infinite Earths (2010-) #1

Crisis on Infinite Earths (2010-) #1

Holy crap,here it is! The grand poobah of all events! Say what ya wanna, these books are the alphas of the comics as we know them today.

Is this new? I was just looking for this the other day and it wasnt on hereā€¦ woooooo!

Are the tie ins necessary for this event? I was hoping to just read the main series.