Volume 13 of 20 · PDF edition
In progressReasoning and Verifiable Learning
For readers building or evaluating reasoning models, verifiers, search, process rewards, and test-time compute systems.
Read every available chapter online for free. The paid edition is a focused, carefully typeset volume PDF with future chapters, updates, and errata included.
- Written chapters
- 7 written chapters
- Planned chapters
- 7 planned chapters
- Approximate pages
- ~220 pages
- Edition
- Version 2026.08.0
- Price
- $24 one-time

Author and edition details
About the author and Volume 13 PDF edition

Michael Brenndoerfer
Michael has spent more than a decade working across software engineering, data, AI, and business. He writes to understand difficult ideas more deeply and to share what he learns in a clear, practical way.
- Edition
- Volume 13 PDF 2026.08.0
- Published
- Last reviewed
Focused learning path
What this volume covers
- Reasoning
- Reasoning Post-Training and Verifiable Rewards
Audience and prerequisites
Where this volume fits
For readers building or evaluating reasoning models, verifiers, search, process rewards, and test-time compute systems.
Prerequisites: Assumes decoder models from Volume 9 and alignment concepts from Volume 12.
Free online preview
Start with “Reasoning Foundations”
Covers reasoning types, reasoning in LLMs, reasoning failure modes, reasoning evaluation.
Exact contents
7 chapters available now
The current PDF contains every linked chapter below. The remaining 7 planned chapters will be added through free volume updates.
Part XXXIX: Reasoning
- 01Reasoning Foundations
Covers reasoning types, reasoning in LLMs, reasoning failure modes, reasoning evaluation.
- 02Chain-of-Thought
Covers CoT prompting, zero-shot CoT, CoT fine-tuning, CoT limitations.
- 03Reasoning Strategies
Covers self-consistency, tree of thought, least-to-most prompting, decomposition strategies.
- 04Reasoning Verification
Covers step verification, process reward models, verification-guided search, self-correction.
- 05Mathematical Reasoning
Covers math problem solving, symbolic integration, math benchmarks, math reasoning training.
- 06Reasoning Limitations
Covers systematic failures, spurious correlations, reasoning shortcuts, robustness challenges.
- 07Reasoning Frontiers
Covers o1-style reasoning, test-time compute scaling, reasoning-capable models, open research questions.
Part XL: Reasoning Post-Training and Verifiable Rewards
- 01Reinforcement Learning from Verifiable RewardsPlanned
Rule-based and executable rewards, correctness verification, reward design, and domains where RLVR works.
- 02Group-Based Policy OptimizationPlanned
GRPO-style objectives, relative advantages, stability, sampling costs, and implementation choices.
- 03Cold Starts, Rejection Sampling, and DistillationPlanned
Bootstrapping reasoning behavior, filtering traces, iterative training, and transferring reasoning to smaller models.
- 04Outcome and Process Reward ModelsPlanned
Sparse outcomes, step-level supervision, verifier reliability, credit assignment, and reward hacking.
- 05Search, Reflection, and Test-Time ComputePlanned
Sampling, verifier-guided search, self-correction, budget allocation, stopping, and compute-optimal reasoning.
- 06Faithful, Hidden, and Latent ReasoningPlanned
When visible chains of thought are explanations, when they are not, and alternatives for latent deliberation.
- 07Overthinking and Reasoning EfficiencyPlanned
Unnecessary deliberation, error amplification, confidence, adaptive budgets, and concise reasoning.
Volume 13 PDF
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Volume 13 of 20
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Version history
Kept current, not frozen in time
Each PDF purchase includes future editions. When the book changes, the updated copy appears in My books at no extra cost.
Current release
Edition 2026.08.0
Initial volume-library release with 19 written PDFs, a Volume 3 placeholder, and no combined edition.