# Teach the Company English AI School

20 free lessons. The agent is the student; people retain judgment.

- [TTC-101 — AI capabilities and limits](https://teachthecompany.com/school/ai-capabilities-and-limits/) (beginner; prerequisites: none)
- [TTC-102 — Clear prompts and task briefs](https://teachthecompany.com/school/clear-prompts-and-task-briefs/) (beginner; prerequisites: TTC-101)
- [TTC-103 — Verification and source reading](https://teachthecompany.com/school/verification-and-source-reading/) (beginner; prerequisites: TTC-101, TTC-102)
- [TTC-104 — Everyday privacy and data minimization](https://teachthecompany.com/school/everyday-privacy-and-data-minimization/) (beginner; prerequisites: TTC-101)
- [TTC-105 — Human decisions and approval](https://teachthecompany.com/school/human-decisions-and-approval/) (beginner; prerequisites: TTC-101, TTC-104)
- [TTC-106 — AI for learning and studying](https://teachthecompany.com/school/ai-for-learning-and-studying/) (beginner; prerequisites: TTC-101, TTC-102, TTC-103)
- [TTC-107 — Multimodal literacy: images, audio, and text](https://teachthecompany.com/school/multimodal-literacy/) (beginner; prerequisites: TTC-101, TTC-103)
- [TTC-108 — Teach one agent a bounded role](https://teachthecompany.com/school/teach-one-agent-a-bounded-role/) (practitioner; prerequisites: TTC-102, TTC-105)
- [TTC-109 — Knowledge and provenance](https://teachthecompany.com/school/knowledge-and-provenance/) (practitioner; prerequisites: TTC-103, TTC-108)
- [TTC-110 — Examples, counterexamples, and corrections](https://teachthecompany.com/school/examples-counterexamples-and-corrections/) (practitioner; prerequisites: TTC-108, TTC-109)
- [TTC-111 — Visible memory and forgetting](https://teachthecompany.com/school/visible-memory-and-forgetting/) (practitioner; prerequisites: TTC-109, TTC-110)
- [TTC-112 — Structured rules, YAML, and AGENTS.md](https://teachthecompany.com/school/structured-rules-yaml-and-agents-md/) (practitioner; prerequisites: TTC-105, TTC-111)
- [TTC-113 — Version history and rollback](https://teachthecompany.com/school/version-history-and-rollback/) (practitioner; prerequisites: TTC-111, TTC-112)
- [TTC-114 — Creative collaboration](https://teachthecompany.com/school/creative-collaboration/) (practitioner; prerequisites: TTC-102, TTC-103, TTC-105)
- [TTC-115 — Workplace task design](https://teachthecompany.com/school/workplace-task-design/) (practitioner; prerequisites: TTC-102, TTC-103, TTC-105)
- [TTC-116 — Least privilege and prompt injection](https://teachthecompany.com/school/least-privilege-and-prompt-injection/) (advanced; prerequisites: TTC-103, TTC-104, TTC-105)
- [TTC-117 — Evaluations and regression tests](https://teachthecompany.com/school/evaluations-and-regression-tests/) (advanced; prerequisites: TTC-103, TTC-110, TTC-113)
- [TTC-118 — Context, retrieval, visible memory, and model-weight fine-tuning](https://teachthecompany.com/school/context-retrieval-memory-and-fine-tuning/) (advanced; prerequisites: TTC-101, TTC-109, TTC-111)
- [TTC-119 — Responsible deployment and accountability](https://teachthecompany.com/school/responsible-deployment-and-accountability/) (advanced; prerequisites: TTC-105, TTC-116, TTC-117)
- [TTC-120 — Portable and self-hosted AI workflows](https://teachthecompany.com/school/portable-and-self-hosted-ai-workflows/) (advanced; prerequisites: TTC-112, TTC-113, TTC-116, TTC-119)