Reletter
Artwork for Castalia Library

Castalia Library

Castalia

The world's most beautiful books presented in series of deluxe leather editions.

Platform
Substack
PricingOnly free issuesPublishesDaily
Issues850Founded2 years agoLast Issue7 days ago
Active

Read this Newsletter

stack.castalialibrary.com
Artwork for Castalia Library

Latest Issues

Guns of Mars 72

CHAPTER 21.3

Fully lifted by the rippling waves, he felt his feet leave the bottom and panicked. His head plunged under the water, and he fought with flailing arms to rise to the surface. The weight of his bandolier and holstered guns w...

7 days ago
12

ANABASIS by Xenophon

Castalia Library is very pleased to belatedly announce that after some internal debate, the May-August 2026 subscription book for Castalia History is the ANABASIS of Xenophon, one of the great military histories of all time.

Anabasis is...

8 days ago
38
3

TRANSLATION: Bailén

BAILÉN by Benito Pérez Galdós is this week’s new translation.

The fourth volume of the Episodios Nacionales — the great historical novel cycle of Spain

July 1808. Napoleon’s armies are invincible. They have crushed Austria, humiliated Pru...

9 days ago
17

Guns of Mars 71

CHAPTER 21.2

When he felt the sun warm the sand around him, he awoke and drained the dregs of his water from the skin. His stomach roiled at the thought of food. He left behind the remaining shank of meat as he made his way farther alon...

13 days ago
10

Guns of Mars 70

CHAPTER 21.1

He drank his fill from the water skin as well as a double portion of raw thoat steak. If he found no water at the end of his quest, if the promised lake was dry as a bone, it would not matter that he gorged himself.

Restor...

14 days ago
12

Key Facts

Contact Information
Newsletter Author
Number of Subscribers
Find out how many people subscribe to this newsletter.

Audience Metrics

Subscribers, engagement, traffic and sponsorship for Castalia Library.

SubscribersEngagement82Monthly Web Visits
Accepts SponsorsEstimated Cost per Ad

SEO Reach

Where Castalia Library ranks on Google, and how much search traffic it brings in.

Ranked Keywords30Monthly Search TrafficTop Keywords

Chart Rankings

How this newsletter ranks in the official Substack charts.

#238

Authors

The writers behind this newsletter.

  • Castalia

    The publisher of the most beautiful books in the world.

  • Frequently Asked Questions

    How can I access the email archive for Castalia Library?

    You can find recent issues that have been published by Castalia Library on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.

    How many subscribers does Castalia Library have?

    To see how many people subscribe to Castalia Library, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.

    How can I advertise in Castalia Library?

    Newsletter advertising can be extremely effective when it's done right. Before you pitch Castalia Library as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.

    Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.

    How much does it cost to sponsor a publication like Castalia Library?

    Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.

    To find out how much an ad will cost, contact Castalia Library using the contact information provided and ask for a copy of their media kit.

    How can I find newsletters related to Castalia Library?

    Scroll up to where it says Related Newsletters to see other publications like Castalia Library. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.

    How do I contact Castalia Library?

    Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.