diff --git a/Skills/Databases.md b/Skills/Databases.md
index 11166444..c499feb1 100644
--- a/Skills/Databases.md
+++ b/Skills/Databases.md
@@ -25,7 +25,7 @@
   - Entity-Relationship Diagram
   - Normal forms
   - Indexing
-  - Promary keys
+  - Primary keys
   - Foreign keys
   - Transactions
   - Views
@@ -90,5 +90,5 @@
   - Big data
   - Data analysis
   - AI tools
-  - Cloud databses
+  - Cloud databases
   - Data Visualization
diff --git a/Skills/Paradigms.md b/Skills/Paradigms.md
index 6787b7a1..91d5f7e5 100644
--- a/Skills/Paradigms.md
+++ b/Skills/Paradigms.md
@@ -11,7 +11,7 @@
   - Object-based programming
   - Generic programming
   - Concurrent computing
-  - Asyncronous programming
+  - Asynchronous programming
   - Parallel programming
   - Reactive programming
   - Functional-reactive (FRP)
diff --git a/Skills/Programming.md b/Skills/Programming.md
index c7ff40af..e976b503 100644
--- a/Skills/Programming.md
+++ b/Skills/Programming.md
@@ -70,7 +70,7 @@
   - Reference types
   - Type systems
   - Strong typing
-  - Weak typeing
+  - Weak typing
   - Duck typing
   - Static typing
   - Dynamic typing
@@ -110,7 +110,7 @@
   - Record
   - Enum
   - Instance
-  - Cbject
+  - Object
   - Collection
   - Set
   - Hash table
@@ -165,7 +165,7 @@
   - Exception
   - Unittesting
   - git
-  - Hithub
+  - Github
   - Docker
   - Kubernetes
   - GCC
@@ -207,7 +207,7 @@
   - VJM
   - CLR
   - Mono
-- Operation systems
+- Operating systems
   - Interrupts
   - Drivers
   - Kernel