The organizers of the second Humble eBook Bundle have added four new books to the offer. Readers can pay what they want for a science fiction collection worth well over $70.  The video embedded above explains how the bundle will help support both authors and charity.

Last year, the first Humble eBook Bundle counted more than $1 million in sales. Here’s more about the new books added to the collection:

xkcd: volume 0 by Randall Munroe, an intelligent humorous collection of comics covering everything from romance to math. Signal to Noise by Neil Gaiman & Dave McKean, an ethereal graphic novel of a man’s last days. The Poison Eaters and Other Stories by Holly Black, a dark collection of short fantasy stories. Machine of Death edited by Ryan NorthMatthew Bennardo, & David Malki, a collection of short stories surrounding a device that can predict a person’s cause of death. For those that have already purchased a bundle, this content will appear automatically on their download page. New customers can access them by paying more than the current average on the site, which will also get them all six books from the first week of our promotion!

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