i was sad to hear Boris Strugatsky had died, joining Arkady who died in 1991 , both now physically lost yet their minds and words live on.
For me Roadside Picnic which became Andrei Tarkovsky’s Stalker was a landmark especially as i saw it as a double bill with Solaris , watching for me was an expansion of the mind i did not fear or contract from subject and length, so much of the analogy that our world has been visited is true to the extent of our ruination of this world and the traps we set both physical and psychological that have been the rise and fall of our civilizations and also so much was said of culture and politics.
Red Schuhart is a great character as the Stalker or scout wandering the zones finding pieces to sell illegally that aliens may of left behind we also have the horrors of children growing deformed and the dead rising i could go on but say get the book watch the film and immerse yourself in the genius of the Strugatsky’s.
watch Stalker http://archive.org/details/Stalker_891
and to read Roadside Picnic