If literature can be compared to art in style content and imagery, then "The Assignment" is closest to surrealist art. Well at least in imagery and style, the content is at times all to earthly. Style: Single sentence chapters; all the chapters; from a half page to six pages. This can be a bit exhausting to read, but the effect is that of well defined, concentrated urgency. There are no unneeded thoughts or phrases, there can't be since the sentence must flow. Imagery: Surreal, vivid, stark. From the first chapter where an occupied coffin is flown back from M. (assume Morocco) to Switzerland by plane. Not in the plane but trailing behind it tethered by ropes over vast stretches of the sunlit North African desert and the Mediterranean. A weird but beautiful image. A few chapters later leaders of a Moslem sect protest the excavation of a large black cube like ruin by sitting in the sand, in a line, at one corner of the ruin while the rest is cleared. They are dressed in black robes which cover their bodies and heads. They sit there day after day in the cloudless dessert, in the blazing sun, in the wind, in the cold clear nights. A female reporter and her film crew approach them in the bright noonday sun, she nudges one to wake him but he simply falls over, there being nothing left but the skeletal remains still wrapped in the black robe, and the next also falls when pushed, and the next, and the next. Content: Philosophical, stark, at times violent. Topics include the need to be observed (hence the title), freedom (the meaning of life is to be free, but freedom can only be achieved when one realizes that life is meaningless), and a nice odd view of the arms race. There is also a interesting point on the emotional frustration of modern war where a man's bloodlust really can't be satisfied. And also on the depravity of rape where a man's bloodlust can be satisfied.
The book is mostly philosophy. In response to an earlier review, the book isn't kind to women, but it isn't kind to men either. The female reporter is a strong not a weak character. The ending, however, is a let down. You get the impression that Durrenmatt got tired of writing single sentences and wrapped it all up in half a paragraph. Read this book, it's very good, then read some of his other books and plays they are also very good but much more normal .... kind of.