Ending today at 2 pm ET, Humble Bundle offers downloads of the Super Nebula Author Showcase eBook Bundle for whatever you want to pay. If you opt to pay the bare minimum of $1, you'll get Venus Prime (pictured), Doorways, Reading the Bones, Howard Who?, The Healer's War, Stranger Things Happen, Phoenix Without Ashes, and Ad Astra: The 50th Anniversary SFWA Cookbook. That's $60 under the cost of these eBooks separately elsewhere.

If you pay more than $8, $15, or $20, you'll receive more eBooks from authors such as Isaac Asimov, Neil Gaiman, and Frank Herbert. Your contribution can be donated to charity, the writers, publishers or all three.