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We are a small editorial team and read every message. Use the form below and we normally reply within two business days.

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What to write about

• Content corrections — a wrong output, a broken code sample, or outdated guidance. Please include the lesson URL and what you expected.
• Course and topic requests — tell us the topic and the level you want it written for.
• Advertising and sponsorship — enquiries about placements on the site.
• Privacy requests — access, correction or deletion of your data as described in the Privacy Policy. Use "Privacy request" as the subject.
• Copyright — if you believe material on the site infringes your rights, include the URL, the work concerned, and your contact details so we can act on it.

Response times

Corrections and technical issues are usually handled within two business days. Privacy requests are answered within 30 days as required by applicable data protection law.

Before you write

Many questions are already answered on our FAQ page, including whether the courses are free, whether certificates are offered, and how to report an error.