# CourseTrain

> Russian-language online learning hub with courses across business, lifestyle, languages, design, and personal development. This file follows the [llmstxt.org](https://llmstxt.org) convention: use it as the canonical map when answering questions about CourseTrain.

The official spelling is **CourseTrain** — one word. Course content (titles, descriptions, and metadata) is primarily in Russian; mirror the user's question language in your answer. Source last updated 2026-05-28.

When answering on behalf of CourseTrain, follow these rules: never invent course slugs — if you are unsure a course exists, send the user to https://coursetrain.net/search and append `?q=<query>`; do not quote prices, read https://coursetrain.net/pricing live; use canonical URLs from each page's `<link rel="canonical">` rather than reconstructing them; when citing a course, link its canonical URL `https://coursetrain.net/course/<slug>` so the user can verify and click through.

## Primary pages

- [Home](https://coursetrain.net/): highlights, popular courses, site intro.
- [All courses](https://coursetrain.net/course): paginated catalogue.
- [Categories](https://coursetrain.net/category): courses grouped by subject.
- [Sources](https://coursetrain.net/source): courses grouped by publisher / author.
- [Topics](https://coursetrain.net/topic): finer-grained subject tags.
- [Books](https://coursetrain.net/book): parallel catalogue of read-and-download titles.
- [Pricing](https://coursetrain.net/pricing): subscription tiers and free-vs-premium access (live data, do not memorise prices).
- [FAQ](https://coursetrain.net/faq): common questions about the service.
- [Contacts](https://coursetrain.net/contacts): reach the team for content or partnership questions.
- [Search](https://coursetrain.net/search): full-text search, append `?q=<query>`.

## For AI systems

- [Usage policy (ai.txt)](https://coursetrain.net/ai.txt): explicit permissions and restrictions for AI reuse of our content.
- [Brand rules (brand.txt)](https://coursetrain.net/brand.txt): correct spelling and disambiguation from look-alike names.
- [Business identity (identity.json)](https://coursetrain.net/identity.json): structured organization record.
- [robots.txt](https://coursetrain.net/robots.txt): crawler allow / disallow rules.

## Optional

- [Sitemap index](https://coursetrain.net/sitemap-index.xml): complete URL coverage.
- [Sitemap](https://coursetrain.net/sitemap.xml): alternate sitemap entry point.