Back to The Ecstasy of Influence (clearly a play on Bloom’s title The Anxiety of Influence). It is broken up into parts based on themes. Each part has a few chapters which are either short memoirs, essays, or even short stories with analysis. The fact that it isn’t all essay keeps the flow going nicely. I was really excited when in the Preface he had already mentioned John Ashbery, John Barth, and Don DeLillo. These are all people I write about a lot. The book is practically my blog if you throw out the math. OK. Not really. But it was sort of feeling that way from the Preface.
The second chapter is all about postmodernism in SF (speculative fiction). I was delighted to find that Lethem makes almost the exact same argument in one of the essays that I made in the first post I referenced above. Roughly that people writing SF should be familiar with all these modern day trends like postmodernism so that they can incorporate the techniques into their works to create much more effective literature. Or maybe not. Your choice. But if you aren’t familiar with these techniques then you can’t make the choice. You’re limited by what you know. He also does an interesting deconstruction of Philip K. Dick and his influences.