Contact

We answer everything, usually within one working day.

If you have bought the guide and it has not arrived

Write from the address you used at checkout and we will send you the file directly. Check the spam folder first — the delivery email comes from the payment processor and occasionally lands there.

If you have found a mistake

This is the message we most want to receive. Tell us the page and what you found. If a claim in the guide does not match the source it cites, we correct it, reissue the file, and send the corrected edition to everyone who has bought it.

If you want to ask something before buying

Ask. If the answer is that the guide does not cover what you need, we would rather tell you that than sell you the wrong thing.

Press and partnerships

Same address. We are a small independent publisher and we read everything ourselves.