This episode of Geek's Guide to the Galaxy is brought to you by Casper, an online retailer of premium mattresses for a fraction of the price, because everyone deserves a great night's sleep.

Get $50 off any mattress purchase by visiting Casper.com slash Galaxy

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Wired.com presents The Geek's Guide to the Galaxy. And here is your host, David Barr-Kirtley.

Hello and welcome to episode 196 of Geek's Guide to the Galaxy.

Our guest today is Glenn Weldon.

He's a panelist on NPR's pop culture happy hour podcast.

He reviews books and comics for NPR.org,

and he's also the author of the book Superman, the unauthorized biography.

And we'll be speaking with him today about his new book, The Cape Crusade, Batman and The Rise of

Nerd Culture.

And today's show was brought to you by Casper. If you need a new mattress just pop on over to

Casper.com slash galaxy and order today. You won't have to visit a showroom or haggle

over prices and the mattress will be shipped to you in a box

that's the size of a mini-fridge. Then all you have to do is open up the box and

watch as the mattress naturally expands to its full size. If you listen to

episode 189 you might remember that back in February I had just

received my very own Casper mattress and that I had used it to replace the extremely

uncomfortable mattress in my guest bedroom in the hopes that that might entice some friends to come visit me sometime.

Well, no one ever showed up, but that's okay because that just means more Casper mattress for me.

I moved to the Casper mattress into my bedroom, and I've been sleeping on it for the past few weeks and honestly I've been so comfortable that I've barely even noticed the aching-aching loneliness

Anyway today's show is all about Batman and Superman, but those aren't the only superheroes around.

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