# Mr. Penumbra's 24-Hour Bookstore: A Novel (10th Anniversary Edition) - Paperback

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by **Robin Sloan** (Author), **Paul Yamazaki** (Foreword by)

**The 10th Anniversary Edition of Robin Sloan's _New York Times_ bestseller, _Mr. Penumbra's 24-Hour Bookstore_, with a new foreword by Paul Yamazaki and featuring the story _Ajax Penumbra 1969_.**

A winner of the Alex Award and a finalist for the _Los Angeles Times_ Book Prize for First Fiction  
Named a best book of the year by _Los Angeles Times_, _San Francisco Chronicle_, and NPR

The Great Recession has shuffled Clay Jannon away from life as a San Francisco web-design drone and into the aisles of Mr. Penumbra's 24-Hour Bookstore. But after a few days on the job, Clay discovers that the store is more curious than either its name or its gnomic owner might suggest. The customers are few, and they never seem to buy anything--instead, they "check out" large, obscure volumes from strange corners of the store.

Suspicious, Clay engineers an analysis of the clientele's behavior, seeking help from his variously talented friends. But when they bring their findings to Mr. Penumbra, they discover the bookstore's secrets extend far beyond its walls.

Rendered with irresistible brio and dazzling intelligence, _Mr. Penumbra's 24-Hour Bookstore_ is exactly what it sounds like: an establishment you have to enter and will never want to leave.

### Author Biography

**Robin Sloan** is the author of _Mr. Penumbra's 24-Hour Bookstore_ and _Sourdough_. He grew up in Michigan and now splits his time between the Bay Area and the internet.

**Number of Pages:** 384

**Dimensions:** 0.99 x 8.18 x 5.34 IN

**Publication Date:** October 04, 2022

**Accelerated Reader:**

**Quiz Name:** Mr. Penumbra's 24-Hour Bookstore

**Interest Level:** Upper Grades, 9-12

**Reading Level:** 5.8

**Point Value:** 12

## Details

- **Price:** 26.0 GBP
- **Vendor:** BooksCloud
- **Type:** Books
- **Tags:** Action & Adventure, Books, Fiction, Literary, Price Written on Book, Technological, Thrillers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 26.00 GBP | In stock |

## Images

- Mr. Penumbra's 24-Hour Bookstore: A Novel (10th Anniversary Edition)

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> Source: [Somiibooks](https://somiibooks.com/products/mr-penumbras-24-hour-bookstore-a-novel-10th-anniversary-edition-paperback)
> Updated: 2026-08-22