"The Other Saudis" is little more or less than a history of Shia in Saudi Arabia, written in narrative form. Niblets of analysis are isolated to the introduction and conclusion and total a mere few pages. I hoped for a little more. Nevertheless, Matthiesen's source spelunking is quite spectacular -- he has certainly produced the defining post-Arab Spring historical narrative of Saudi Arabia's Shia minority, sifting hundreds of obscure books, manuscripts, articles, and personal interviews. The finished product is impressive, but, again, a little skinny in the analysis department.
On the other hand, there aren't groundbreaking conclusions at which to arrive concerning Saudi Shia, so perhaps it's unfair to fault Matthiesen for being able to fill a few pages with them. Saudi Shia are marginalized, repressed, and have bleak prospects. Shia notables from the Eastern Province have too much to lose from their relationship with the royal family to throw it all away by defending Shia grievances. Consequently, Shia have few viable means by which to interface with the state. Further, Saudi Shia are stuck in a political system founded on puritanical Sunni Islam -- the royal family's political legitimacy rests primarily on its religious legitimacy, which in turn rests in large part on maintain Sunni Islam's purity from heresy. And Shiism is heresy in this Saudi doctrinal milieu. Hence Shia demands for equal representation in Saudi political bodies and an end to state-sponsored vilification necessarily butts up against the state's interest in perpetuating the Sunni-Shia division within Saudi Arabia in order to highlight the regime's religious bona fides. In short, Saudi Shia ought not expect their century-old demands to be met with anything more than official posturing and feigning and coopting of the Shia notables that represent the Shia masses. This is enough for the state to keep the Shia quiescent enough so that they can continue to be an ideological punching bag for Saudi Sunni, which serves the royal family quite well.