Skip to content

Shelfmark Beta

Series Authors Genres New Pricing My Shelf

Home / Series / Randall Munroe / xkcd / Project Orion

Project Orion

by Randall Munroe · 2021

Book 2421 of 3200 in xkcd

2423rd strip of the webcomic xkcd

Full reading order Find a copy

← Vaccine Ordering Next: Normal Conversation

Shelfmark

Every book series in the right order — and a private, no-signup reading tracker built into every page.

Data from Wikidata & Open Library (CC0). Not affiliated with any retailer.

Explore

All series
Popular series
All authors
Genres
New releases
My shelf
Pricing
About & methodology
Privacy

More from Zalize

AstroSage — Zi Wei astrology readings
SubSleuth — Track your subscriptions
HonestCV — Honest resume feedback
WatchDeck — Track TV shows
MealLoop — Weekly meal planning

© 2026 Shelfmark · zalize.com