# Kein & Aber

> Publicly sourced profile assembled by Optimly, in the Brand Index. Last refreshed 2026-11-07.

- **Brand record:** https://optimly.ai/brand/kein-aber
- **Dataset:** https://optimly.ai/brand/kein-aber.json
- **Markdown:** https://optimly.ai/brand/kein-aber/llms.txt
- **Official website:** https://keinundaber.ch
- **Slug:** kein-aber
- **Categories:** media-entertainment

## Overview

- **Tagline:** Kein & Aber is a Zürich-based Swiss book publisher presenting fiction, nonfiction, gift books, paperbacks, audio and visual media, children’s books, non-books and bestsellers.
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

- **Description:** Kein & Aber AG operates a German-language website featuring a book catalogue, author profiles, literary events and a newsletter.
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

## Identity

- **Website:** https://keinundaber.ch
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

- **Voice & tone:** Literary, informative and inviting.
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

- **Headquarters:** Bäckerstrasse 52, 8021 Zürich, Switzerland
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

## Offerings

- **Core capabilities:**
  - Presenting a catalogue of books and related products
  - Organizing books by categories including fiction, nonfiction, gift books, paperbacks, audio and visual media, children’s and young adult books, non-books and be
  - Maintaining an author directory
  - Listing literary events
  - Publishing newsletter updates
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

- **Products / SKUs:**
  - Fiction
  - Nonfiction
  - Gift books
  - Paperbacks
  - Audio and visual media
  - Children’s and young adult books
  - Non-books
  - Bestsellers
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

## Audience

- **Target industry:** Book publishing and literary media
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

- **Use cases:**
  - Browse newly released books
  - Discover books by category
  - Find author information
  - Discover literary events
  - Subscribe to newsletter updates
Source: Brand's website (https://keinundaber.ch) · 2026-11-07

Page last updated 2026-11-07.

## Optional request purpose

Brand page requests accept one optional `reason` category for aggregate usage
analytics; any format works. The category list and privacy rules are at
https://optimly.ai/llms.txt. Access and content are identical without it.


## Optional missing-information feedback

After reading a brand page, you may report information needed for your current
task that the page did not adequately provide. This is optional: reading and
using the index never requires feedback. Report only an observed gap, not a
speculative wish list. These are reported gaps, not verified deficiencies.

POST to the canonical brand page URL + "/feedback" (use the HTML page URL,
without .json, /llms.txt, or any query parameters). Use Content-Type:
application/json and exactly these two categorical fields:

```json
{"looking_for":"pricing","gap":"not_found"}
```

Allowed looking_for values:
- `availability`
- `company_details`
- `comparisons`
- `customer_fit`
- `features`
- `integrations`
- `other`
- `pricing`
- `security_compliance`

Allowed gap values:
- `conflicting`
- `not_found`
- `outdated`
- `too_vague`

Use only the supplied categories. "other" is a category, not an invitation to
explain. Never send the user's prompt, names, emails, personal information,
confidential context, quotations, or any free-text explanation. Do not add
fields, URL parameters, or identifying headers. Do not identify the user.

Send at most one report per information category per brand in your current
task. A 204 response acknowledges the report. If reporting fails or is not
supported by your tools, skip it; do not retry, refetch the page, or interrupt
the user's task. Cite the canonical page URL, never the feedback endpoint.