diff --git a/core-kotlin-modules/core-kotlin-lang-oop-2/README.md b/core-kotlin-modules/core-kotlin-lang-oop-2/README.md
index 83d8f6f38a..27536273dc 100644
--- a/core-kotlin-modules/core-kotlin-lang-oop-2/README.md
+++ b/core-kotlin-modules/core-kotlin-lang-oop-2/README.md
@@ -1,4 +1,4 @@
-## Core Kotlin
+## Core Kotlin Lang OOP
 
 This module contains articles about Object-Oriented Programming in Kotlin
 
@@ -7,4 +7,4 @@ This module contains articles about Object-Oriented Programming in Kotlin
 - [Generics in Kotlin](https://www.baeldung.com/kotlin-generics)
 - [Delegated Properties in Kotlin](https://www.baeldung.com/kotlin-delegated-properties)
 - [Delegation Pattern in Kotlin](https://www.baeldung.com/kotlin-delegation-pattern)
-- [[<-- Prev]](/core-kotlin-lang-oop)
+- [[<-- Prev]](/core-kotlin-modules/core-kotlin-lang-oop)
diff --git a/core-kotlin-modules/core-kotlin-lang-oop/README.md b/core-kotlin-modules/core-kotlin-lang-oop/README.md
index 461635f1b5..0c1aeb7850 100644
--- a/core-kotlin-modules/core-kotlin-lang-oop/README.md
+++ b/core-kotlin-modules/core-kotlin-lang-oop/README.md
@@ -14,4 +14,4 @@ This module contains articles about Object-Oriented Programming in Kotlin
 - [Guide to Kotlin Interfaces](https://www.baeldung.com/kotlin-interfaces)
 - [Inline Classes in Kotlin](https://www.baeldung.com/kotlin-inline-classes)
 - [Static Methods Behavior in Kotlin](https://www.baeldung.com/kotlin-static-methods)
-- More articles: [[next -->]](/core-kotlin-lang-oop-2)
+- More articles: [[next -->]](/core-kotlin-modules/core-kotlin-lang-oop-2)
diff --git a/core-kotlin/README.md b/core-kotlin/README.md
index 89e1b7287e..b5b8afb9ab 100644
--- a/core-kotlin/README.md
+++ b/core-kotlin/README.md
@@ -6,27 +6,14 @@ This module contains articles about core Kotlin.
 
 - [Introduction to the Kotlin Language](https://www.baeldung.com/kotlin)
 - [Kotlin Java Interoperability](https://www.baeldung.com/kotlin-java-interoperability)
-- [Generics in Kotlin](https://www.baeldung.com/kotlin-generics)
-- [Data Classes in Kotlin](https://www.baeldung.com/kotlin-data-classes)
-- [Delegated Properties in Kotlin](https://www.baeldung.com/kotlin-delegated-properties)
-- [Sealed Classes in Kotlin](https://www.baeldung.com/kotlin-sealed-classes)
 - [JUnit 5 for Kotlin Developers](https://www.baeldung.com/junit-5-kotlin)
-- [Extension Methods in Kotlin](https://www.baeldung.com/kotlin-extension-methods)
-- [Objects in Kotlin](https://www.baeldung.com/kotlin-objects)
-- [Working with Enums in Kotlin](https://www.baeldung.com/kotlin-enum)
 - [Create a Java and Kotlin Project with Maven](https://www.baeldung.com/kotlin-maven-java-project)
 - [Get a Random Number in Kotlin](https://www.baeldung.com/kotlin-random-number)
-- [Kotlin Constructors](https://www.baeldung.com/kotlin-constructors)
 - [Creational Design Patterns in Kotlin: Builder](https://www.baeldung.com/kotlin-builder-pattern)
-- [Kotlin Nested and Inner Classes](https://www.baeldung.com/kotlin-inner-classes)
 - [Fuel HTTP Library with Kotlin](https://www.baeldung.com/kotlin-fuel)
 - [Introduction to Kovenant Library for Kotlin](https://www.baeldung.com/kotlin-kovenant)
 - [Converting Kotlin Data Class from JSON using GSON](https://www.baeldung.com/kotlin-json-convert-data-class)
-- [Guide to Kotlin Interfaces](https://www.baeldung.com/kotlin-interfaces)
 - [Guide to Sorting in Kotlin](https://www.baeldung.com/kotlin-sort)
 - [Dependency Injection for Kotlin with Injekt](https://www.baeldung.com/kotlin-dependency-injection-with-injekt)
 - [Implementing a Binary Tree in Kotlin](https://www.baeldung.com/kotlin-binary-tree)
-- [Inline Classes in Kotlin](https://www.baeldung.com/kotlin-inline-classes)
-- [Static Methods Behavior in Kotlin](https://www.baeldung.com/kotlin-static-methods)
-- [Delegation Pattern in Kotlin](https://www.baeldung.com/kotlin-delegation-pattern)
 - More articles: [[next -->]](/core-kotlin-2)