I had to take about a five month break in the middle of reading this, because classes and my job started up. All in all, it's a good book.
There are a number of problems, and unfortunately, I don't have simple answers for a lot of them. For example, Christie's analysis relies highly upon criticisms that Federica Montseny was a rising star in FAI leadership, who sold out the anarchist base. However, this presumes Montseny was a member; she held delegate status and posts at times. It makes sense, right? But Bookchin's acclaimed The Spanish Anarchists 1998 reprint notes that he (Bookchin), also made this erroneous presumption, noting that Montseny denied FAI membership. Was she lying? It's tough to tell. Likewise, Christie occasionally implies (seemingly intentionally) that Durruti may not have held FAI membership status, even though he marched as its leading voice and delegate on multiple occasions.
Christie depicts Pestana as an evolving character. Other accounts (Abel Paz's Durruti biography, Bookchin's Spanish Anarchists, or just Wikipedia) recount his existence as a more consistent syndicalist looking for a place to politically reside. These other accounts seem much less dramatic, while Christie's seems to dramatize a person to make his analytical point that professional revolutionaries become bureaucratic functionaries.
I really hoped Christie would have provided more in the area of answers at the end, in relation to the common criticisms of anarchist treatment of the Civil War conflicts: Should they have had clearly defined strategies for addressing an antifascist Popular Front, and if so, could discipline be enforced to allow executive organizational authority to refuse such participation? He claims Durruti makes an argument about bargaining with the Antifascist Militias for FAI prisoners, almost dismissing this as an equal position to Montseny's. I would have liked to have seen the answers part of the book flushed out more. Christie occasionally admires the autonomy of Bakuninist structures - one that most anarchist groups today regard as outdated or at least in need of more detail for use.
Speaking of Bakuninist dogma, on page 189-190, Christie recounts a vote where an anarchist in the Bakuninist First International tradition of The Alliance were nominated and elected from their CNT union to serve as Regional Secretary in the Catalan CNT, declined it. Then, the seat was appointed to the runner up, who also declined it, keeping with The Alliance's tradition of rejecting union official positions. Then, the position went to someone Garcia Oliver had nominated as a joke in a union local - Mariano Vasquez - who was unsuited and didn't really want the position. Vasquez was the model member to not hold office, and the power of the CNT was driven into the hands of those most willing to hold it. Given this reality, which is a common criticism of the anarchists in Spain (and goes along with Montseny's abstention to take power in Catalonia), it begs an answer from Christie about what should have been done differently.
When they participate in leading, he claims they inevitably become co-opted as bureaucrats. When they abstain, they hand the revolution over to liberals for reform and patty-cake with fascists. What is Christie's solution here?
Christie really goes after Diego Abad de Santillán as an academic reformist bureaucrat in the FAI, but never really details his contributions to anarchist economic theory or his milestone economic planning proposal at the Third CNT Congress. I get that de Santillán was not writing for the rank-and-file, but he was trying to prepare the FAI to address the CNT on how to organize the economy to defend the revolution and establish a just planned economy that would not falter the way the Soviet Union did. Instead, Christie continually relegates him to the camp of the perpetual bureaucrat.
Christie quotes a lot at length, but if you're looking to find some good primary source samples, see Abel Paz's Durruti biography. He quotes at length, juxtaposing multiple perspectives before going after them.
Parts of the book's claims about the quantitative strength and weakness of the FAI are difficult to assess. FAI membership was secret. How are we to evaluate heroism as driving a mass recruitment and swelling of membership, when the numbers aren't there? This is perhaps an unfair criticism, as members did account of its growth, but this is possibly the most consistently bothering criticism in the book. Whenever a FAI member is criticized, I can't help but wonder if they were really a member. Kind of kidding, kind of not with that comment.
Christie seems to gloss over the POUM on multiple occasions, I'm guessing because they're inconvenient for his slurring of Marxists. The POUM had most of the same debates, reservations, and flaws by entering the Popular Front. Most of the criticisms and praises during the Revolution would apply to both, but he largely just refers to "Marxists," as if Nin, Negrin, Maura, and Caballero were all conspiring to silence the FAI declare them an illegal organization. This analysis omits facts for anarchist analytical convenience.
I recommend the book, but I would place it below Bookchin's Spanish Anarchists and Paz's Durruti on the must read.