Finally Finished: Character Studies: encounters with the curiously obsessed by Mark Singer, 2005, 0618197257.
I read part of this a few years ago and never finished all the essays. I read Head Games by Craig McDonald and he reference this book in an afterword. Or foreword. Or author's note. Or something. So, I checked it out again.
I read them. One essay is about highly driven NYC suburban moms. What a couple of fucking nutcases. I reread the Ricky Jay essay. After first reading that essay I hunted down Ricky Jay books and other materials.
Essays date from about 1990 onwards.