Sevastopol was out of range for Ukrainian missiles until recently. The Ukrainian army was able to move their launchers 10-20km south only thanks to the gains made during the summer offensive. The recent attacks on Russian targets in Sevastopol/Crimea are probably precisely to draw Russian deployments from the front lines.
There is one called “The Scout Mindset” by Julia Galef. It’s an amazing resource when it comes to teaching critical thinking, because it gradually introduces the reader to the virtue of being able to change your mind/opinion based on new information. I think that’s a fundamental skill everyone needs in order to use critical thinking in a meaningful way.