And I can tell you that The Disneyland Encyclopedia
So this is absolutely the book for anyone interested in the history of Disneyland; I've never seen or heard of anything half as comprehensive or detailed. (I also note that I read the 2008 first edition, which has a blue cover; a second edition came out this summer and has an orange cover -- I assume, but do not know for sure, that the updates are primarily about changes since 2008 and not new archival information.)
The only major negative is that Strodder deliberately did not ask any questions of Disney officials; he hasn't interviewed anyone or done any original research, just read the primary documents and the already-existing books about Disneyland. (Readers will note that he relies very heavily on souvenir books as primary sources: he seems to be someone who started off as a souvenir-book collector and only afterward decided he wanted an encyclopedia of Disneyland, so wrote it himself when no one else did.) It would have been nice if he'd done some journalistic digging -- but, then again, the scope of Disneyland Encyclopedia is so large that he could be researching just Adventureland attractions for a decade or more. So that's something of a missed opportunity; I have to assume that Strodder has a list of questions he'd like to have answered, and there are certainly people still alive who could answer some of those questions, if he wanted to track them down and ask.
But that is a quibble: Disneyland Encyclopedia is now and is likely to remain the most comprehensive book on the park -- unless the Disney company follows Strodder's lead, opens their vaults, and does a similar book based on official archival materials -- and so is of strong interest to serious Disney fans, anyone interested in 20th century pop and cultural history, and Californiana.