Related to my post from yesterday about this, it seems that professor Gang Tian of Princeton and professor John Morgan of Columbia also posted a 473 page monograph titled Ricci Flow and the Poincaré Conjecture.
For an introductory text on Ricci Flow and Geometrization, this might be even more suitable than the Cao-Zhu paper linked to yesterday.
(Thanks to Aleks for letting me know about this.)