: A massive official archive where you can read and sometimes download educational and historical literature.

: Specifically hosts various volumes of the Arkady Likum series (e.g., Volume 7) for download in djvu, fb2, and pdf .

: Offers free downloads in popular formats like fb2, epub, pdf, and mobi .

You can find the "Everything About Everything" volumes and other general knowledge books on these reliable platforms:

The classic encyclopedia series (Все обо всем) consists of multiple volumes (up to 26 in some collections) covering history, science, and nature. 1. Top Platforms for Downloading & Reading