Well, I will try again.
I search a novel which is recently published or will be published within the next 3 months.
It's important that the book is not already published in german.
Because I want to translate it it's important that the book has fewer than 150 pages.
I have no other important requirements but it would be great if it would be a hommouristic story but isn't necessary. It is also not necessary that the book is easy to read recently I read "Animal Farm" and "Shake Hands with the Devil" and I understand both without big problems.
So if you read a novel recently or had heard about a book which will be published soon and shall be good please post it. I hope you can help me.

That truly is a tough one because one needs to search for stories that were published this year, haven't been translated into German and are fewer than 150 pages. I'd suggest you find some type of book that has been published with a group of short stories, that way, you can start your research to see if they have yet been translated.

By starting with a book of stories, rather than a single novel, you broaden your options as well as narrow the risk of them already having been translated.

A couple that were published this year follow - click on the link. You'll still have to do some research to see if they do, in fact, meet your requirements.

Short Story Fiction Titles

Here is a link to one of the books listed.The Language of Elk

How about "Waterloo" by Andrew Roberts. It was published March 2005 and has 144 pages (160 total in the book)

Here is a summary of the book.

And this is a list of novels 150 pages or less...however they were not published this year and I don't know if they have been translated into German.