diff --git a/R/KorAPConnection.R b/R/KorAPConnection.R
index 13cc6fe..fe6b9f1 100644
--- a/R/KorAPConnection.R
+++ b/R/KorAPConnection.R
@@ -32,6 +32,60 @@
 #' kcon <- KorAPConnection() |> auth()
 #' ```
 #'
+#' @param KorAPUrl URL of the web user interface of the KorAP server instance you want to access.
+#'   Defaults to the environment variable `KORAP_URL` if set and to the IDS Mannheim KorAP main instance
+#'   to query DeReKo, otherwise.
+#' @param apiVersion which version of KorAP's API you want to connect to. Defaults to "v1.0".
+#' @param apiUrl URL of the KorAP web service. If not provided, it will be constructed from KorAPUrl and apiVersion.
+#' @param accessToken OAuth2 access token. For queries on corpus parts with restricted
+#'   access (e.g. textual queries on IPR protected data), you need to authorize
+#'   your application with an access token.
+#'   You can obtain an access token in the OAuth settings of your KorAP web interface.
+#'
+#'   More details are explained in the
+#'   [authorization section](https://github.com/KorAP/RKorAPClient#authorization)
+#'   of the RKorAPClient Readme on GitHub.
+#'
+#'   To use authorization based on an access token
+#'   in subsequent queries, initialize your KorAP connection with:
+#'
+#'   ```
+#'   kco <- KorAPConnection(accessToken="<access token>")
+#'   ```
+#'
+#'   In order to make the API
+#'   token persistent for the currently used `KorAPUrl` (you can have one
+#'   token per KorAPUrl / KorAP server instance), use:
+#'
+#'   ```
+#'   persistAccessToken(kco)
+#'   ```
+#'
+#'   This will store it in your keyring using the
+#'   [keyring::keyring-package]. Subsequent KorAPConnection() calls will
+#'   then automatically retrieve the token from your keying. To stop using a
+#'   persisted token, call `clearAccessToken(kco)`. Please note that for
+#'   DeReKo, authorized queries will behave differently inside and outside the
+#'   IDS, because of the special license situation. This concerns also cached
+#'   results which do not take into account from where a request was issued. If
+#'   you experience problems or unexpected results, please try `kco <-
+#'   KorAPConnection(cache=FALSE)` or use
+#'   [clearCache()] to clear the cache completely.
+#'
+#'   An alternative to using an access token is to use a browser-based oauth2 workflow
+#'   to obtain an access token. This can be done with the [auth()] method.
+#' @param oauthClient OAuth2 client object (advanced users only).
+#' @param oauthScope OAuth2 scope. Defaults to "search match_info".
+#' @param authorizationSupported logical that indicates if authorization is supported/necessary for the current KorAP instance. Automatically set during initialization.
+#' @param userAgent user agent string. Defaults to "R-KorAP-Client".
+#' @param timeout timeout in seconds for API requests (this does not influence server internal timeouts). Defaults to 240 seconds.
+#' @param verbose logical that decides whether following operations will default to
+#'   be verbose. Defaults to FALSE.
+#' @param cache logical that decides if API calls are cached locally. You can clear
+#'   the cache with [clearCache()]. Defaults to TRUE.
+#'
+#' @return [KorAPConnection()] object that can be used e.g. with [corpusQuery()]
+#'
 #' @details
 #' The KorAPConnection object contains various configuration slots for advanced users:
 #' KorAPUrl (server URL), apiVersion, accessToken (OAuth2 token),
@@ -58,7 +112,9 @@
 #' @param .Object KorAPConnection object
 #' @param KorAPUrl URL of the web user interface of the KorAP server instance you want to access.
 #'   Defaults to the environment variable `KORAP_URL` if set and to the IDS Mannheim KorAP main instance
-#'   to query DeReKo, otherwise.
+#'   (<https://korap.ids-mannheim.de/>) to query DeReKo, otherwise.
+#'   In order to access the KorAP instance at the DNB to query the contemporary fiction corpus DeLiKo@@DNB,
+#'   for example, set `KorAPUrl` to `https://korap.dnb.de/`.
 #' @param apiVersion which version of KorAP's API you want to connect to.
 #' @param apiUrl URL of the KorAP web service.
 #' @param accessToken OAuth2 access token. For queries on corpus parts with restricted
@@ -527,7 +583,7 @@
 #' kco <- KorAPConnection()
 #' clearCache(kco)
 #' }
-#' 
+#'
 #' @aliases clearCache
 #' @export
 setMethod("clearCache", "KorAPConnection", function(kco) {