What was invented when? All about phones
What do you call that gizmo you carry around with you 24/7? You probably call it a "phone" even though that's probably not how you use it...
What was invented when? All about phones
Parable of the Sower, by Octavia Butler
What was invented when? Ten technologies and their release dates
Z is for Zachariah, by Robert C. O'brien
How does your world end? Common causes of fictional apocalypses (and examples)
The Death of Grass, by John Christopher
Dies the Fire, by SM Stirling
Reading list for the post-apocalyptic writer, part 3
The Calculating Stars, by Mary Robinette Kowal
Reading list for the post-apocalyptic writer, part 2
Reading list for the post-apocalyptic writer, part 1