salam alaikum bro pagluu
I actually had the original book version of this work it was green cover and published in NY
as u can notice its not a very referenced work but merely a polemical one which is a propogation of 12er viewpoint
more scholarly and referenced works ( which give a overview of early shiaism) by non-partisan sources if ur interested are these
Amazon.com: Shi’ism: Professor Heinz Halm, Professor Janet Watson, Professor Marian Hill: Books
to the aqeel123
my views are very similar to the companion Khalid b saeed radiallahanhu who told sayyidna ali "by God no man is more entitled to lead this community after Muhammad (saw) than you "
Same Khalid later gave bayat to sayyidna Abu bakr after Ali did so and was appointed to lead armies by him.
so dont confuse the early differences in sahaba at saqifa ( which were non-bloody at this time) as genesis of ithna ashari ideology
btw ghali is a term for extremist rafidi sects ..its not a bad word