Books Worth Reading
Investor Due Diligence Report
substackCulture
The best books about everything.
271K
23K paid
+3.8%
+10.6%
net growth
Pricing
$6.99/mo
$69.99/yr annual option
$128K
23K paid subs
$128K/mo – $128K/mo(±0%)
10.1
119.1
0.05%
(comments + likes) / subscribers
Weekly
1.4 posts/week
73/100
Consistent (~5.3d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Lexicon Valley | 34K | N/A | Free | substack |
| Weirder Together with Ben Lee & Ione Skye | 32K | N/A | Free | substack |
| Colin Meloy's Machine Shop | 26K | N/A | $6/mo | substack |
| The Empire of the Tiny Onion | 24K | N/A | Free | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Mar 2026 | 143K | $67,603.38 | — |
| Apr 2026 | 174.5K | $82,497.81 | +22.0% |
| May 2026 | 206K | $97,386.68 | +18.0% |
| Jun 2026 | 217K | $102,586.94 | +5.3% |
| Jul 2026 | 235K | $111,096.46 | +8.3% |
| Aug 2026 | 254K | $120,078.72 |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Regular publishing schedule
Key Person
Single-author publication — key-person dependency
Audience Concentration
Some posts outperform significantly
Subscriber threshold
271K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 23 similar-size peers in Culture have paid tiers
Pricing position
$6.99/mo vs $5/mo category median (3579 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $7 | $70 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 44/100 | 30% |
| Paid Subscriber Ratio | 100/100 | 25% |
| Growth Consistency | 44/100 | 15% |
| Publishing Consistency | 61/100 | 10% |
| Between the Lines by Tucson Festival of Books | 24K | N/A | $8/mo | substack |
| +8.1% |
Revenue Model
Active paid subscription tier