How To Write Espionage

Let's face it: The espionage genre is a tough one.
We espionage writers have to carefully toe a line between "too unrealistic" to "boring" or "not imaginative enough." Probably one of the hardest genres to write, I have made a guide listing my experiences and difficulties in writing espionage, as well as advice and tips as well.
My hope is that this guide will make it (slightly) easier for you to write your espionage story.
Good luck!
-Amber

**Note: Much of this guide is taken from my other guide, "How To Write An Alex Rider Fanfiction." It is adapted to this guide, but much of the content remains the same. Both guides are essentially similar besides the obvious fact that the other deals with more specific characters than this one.**