Ways to retain subscribers and automation?

Can anyone advise 2-100 books sensible social. networks?
To attract subscribers to contact know (OK worse )and keep them in the group and especially for the much worse work..

need a book...or video lectures in YouTube
not only old women, idiots, and not Americans who discovered that 2*2=4...

as even though you can automate the creation of video content on popular topics?
March 23rd 20 at 18:57
2 answers
March 23rd 20 at 18:59
Engagement and retention in 2019 is made with the help of gamification. Write me in VK will understand) https://vk.com/taubesmm
March 23rd 20 at 19:01
It is obvious that good content
The very creation in any way, cleaning noise, screensavers, and so many software to automate

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