All links in bold are translated into English.
What Can You See with a Telescope?
Choosing a telescope
Assistant in choosing a telescope
Black list of telescopes
The main functional units of the telescope
I got a telescope. What’s next?
Choosing Eyepieces. A Guide on Choosing The Right Telescope Eyepieces
Choosing astronomical binoculars
Red Dot — finder
About observing the Sun
Dobson’s collapsible mount
Telescope optics cleaning. Refractors and catadioptrics.
Comparison of Sky-Watcher BK705 and BKP1145 on the Orion Nebula.
Observations with a telescope outside the city. Tips for organizing astronomical observations
Laser Go-To for Dobsian