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Ernan Hughes: Amazon KDP author data
As of Nov 6, 2026, Ernan Hughes has 24 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #21), mostly in Cybernetics, Neural Networks, AI & Semantics.
| Median price | $4.99 |
|---|---|
| Price range (middle 50%) | $2.99 – $5.99 |
| Median reviews | 1 |
| Total reviews | 2 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 3 |
What stands out
- 6 new books in the last 30 days, 3 of them broke into a Best Sellers list.
Ernan Hughes's best-ranked books
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Embeddings From First Principles: Geometry, Retrieval, Alignment, and the Hidden Representation Layer of AI (AI Architecture Book 8)
by Ernan Hughes
- Price$3.99
- Reviews-
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Cellular Automata From First Principles: From Local Rules to Emergence, Computation, and Artificial Life (AI Architecture Book 12)
by Ernan Hughes
- Price$2.99
- Reviews-
-
Pi agents: Building on the Coding Agent (AI Architecture Book 13)
by Ernan Hughes
- Price$2.99
- Reviews-
-
Techno-Prophet: The War for the Future of Intelligence
by Ernan Hughes
- Price$0
- Rating5.0
- Reviews1
- Published2026-05
-
Agent Architectures: Advanced Strategies for Intelligent LLM Systems (AI Architecture Book 1)
by Ernan Hughes
- Price$2.99
- Rating5.0
- Reviews1
-
Freestyle Cognition: A New Way of Thinking and Building with AI (AI Architecture Book 2)
by Ernan Hughes
- Price$9.99
- Reviews-
-
PyTorch From First Principles: Understand Tensors, Autograd, Training, Debugging, Performance, and torch.compile from the Ground Up (AI Architecture Book 4)
by Ernan Hughes
- Price$1.99
- Reviews-
- Published2026-08
-
Applied AI: Putting Intelligence to Work (AI Architecture Book 9)
by Ernan Hughes
- Price$4.99
- Reviews-
-
DSPy From First Principles: Programs, Metrics, Optimizers, Agents, and Reasoning Search (AI Architecture Book 6)
by Ernan Hughes
- Price$3.99
- Reviews-
-
Axiom Zero: An AI Horror Novel About the People Who Made Freedom Obsolete
by Ernan Hughes
- Price$5.99
- Reviews-
- Published2026-06
Main categories
FAQ
How many books does Ernan Hughes have on Amazon?
KDPTop tracks 24 of their books; 6 made an Amazon list in the last 30 days.
Which categories does Ernan Hughes publish in?
Their books chart most often in Cybernetics, Neural Networks, AI & Semantics.
How does Ernan Hughes price their books?
The median price is $4.99; half of the books cost $2.99–$5.99.
Has Ernan Hughes released new books recently?
6 new books in the last 30 days, 3 of which reached a Best Sellers list.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.