What has the author Walter Rinder written?

There doesn't seem to be a well-known author named "Walter Rinder." It's possible:

* The name is misspelled: Perhaps the author's name is slightly different. Could you double-check the spelling?

* The author is less known: It's possible the author is not widely published or known.

* The author is specialized: The author may write in a niche genre or field that is less accessible to the general public.

To help me find the author, could you provide any additional details, such as:

* Genre of writing: What kind of books does the author write? (fiction, non-fiction, poetry, etc.)

* Approximate year of publication: When were the author's works published?

* Any specific titles: Do you remember any titles of books by the author?

With more information, I can try to find this author and their works.