diff --git a/Skills/Async.md b/Skills/Async.md
index fdf82754..347ccf7b 100644
--- a/Skills/Async.md
+++ b/Skills/Async.md
@@ -2,10 +2,10 @@
 
 - Theory
   - Event loop 👂 heard
-  - try..catch 👂 heard
+  - try..catch ✋ used
   - Non-blocking
   - Async I/O
-  - Thread pool
+  - Thread pool 👂 heard
   - Pattern Reactor
   - CAS operations
   - epoll
@@ -19,31 +19,31 @@
   - Concurrent programming
   - Parallel programming
   - Actor Model
-  - Thread
-  - Process
+  - Thread  👂 heard
+  - Process 👂 heard
 - Async contracts
   - Callbacks 👂 heard
   - Callback-last-error-first
   - Thenable
   - Promise 👂 heard
-  - Async/await 👂 heard
+  - Async/await ✋ used
   - Future
   - Deferred
   - Sync generator
-  - Async Generator
-  - Async Iterator
-  - Event 👂 heard
+  - Async Generator 👂 heard
+  - Async Iterator 👂 heard
+  - Event ✋ used
   - Coroutine
   - Goroutine
   - Signal
-  - Stream
+  - Stream 👂 heard
   - Chain of responsibility
   - Middleware
   - Locks
 - Async adapters and utils
   - callbackify
-  - promisify
-  - asyncify
+  - promisify 👂 heard 
+  - asyncify 👂 heard
   - callbacks compose
   - async compose
 - Async abstractions interfaces
diff --git a/Skills/JavaScript.md b/Skills/JavaScript.md
index a53a5f5d..a663ed60 100644
--- a/Skills/JavaScript.md
+++ b/Skills/JavaScript.md
@@ -32,7 +32,7 @@
   - ternary operator ✋ used
   - void ✋ used
   - yield
-  - await
+  - await ✋ used
   - template literal
   - strict mode
   - delete
@@ -84,6 +84,6 @@
 - Infrastructure
   - V8
   - Node.js 👂 heard
-  - npm
+  - npm ✋ used
   - prettier ✋ used
   - MDN
diff --git a/Skills/Paradigms.md b/Skills/Paradigms.md
index 94577bde..4422793d 100644
--- a/Skills/Paradigms.md
+++ b/Skills/Paradigms.md
@@ -1,13 +1,13 @@
 ## Multi-paradigm programming
 
 - Theory
-  - Procedural programming👂heard
-  - Imperative programming
-  - Structured programming 👂heard
+  - Procedural programming ✋ used
+  - Imperative programming ✋ used
+  - Structured programming ✋ used
   - Non-structured programming 👂heard
   - Functional programming 👂heard
   - Prototype-based programming 👂heard
-  - Object-oriented programming 👂heard
+  - Object-oriented programming ✋ used
   - Object-based programming 👂heard
   - Generic programming
   - Concurrent computing
@@ -17,44 +17,44 @@
   - FRP (Functional-reactive)
   - Automata-based programming
   - Domain-specific languages
-  - Multi-paradigm programming
-  - Metaprogramming
+  - Multi-paradigm programming 👂heard
+  - Metaprogramming 
   - Actor model
 - OOP basics
-  - constructor
-  - new
+  - constructor ✋ used
+  - new ✋ used
   - Static method  ✋used
   - Method ✋used
-  - Async method 👂heard
-  - Getters, Setters
-  - Public fields 👂heard
-  - Private fields 👂heard
-  - Field declarations 👂heard
+  - Async method ✋ used
+  - Getters, Setters ✋ used
+  - Public fields ✋ used
+  - Private fields ✋ used
+  - Field declarations ✋ used
   - Inheritance ✋ used
   - Parent class ✋ used
-  - Polymorphism 👂heard
-  - Abstract class
-  - Interface
-  - Encapsulation
-  - Hidden class
-  - Object form
-  - instance
-  - Introspection
-  - Reflection
+  - Polymorphism ✋ used
+  - Abstract class ✋ used
+  - Interface ✋ used
+  - Encapsulation ✋ used
+  - Hidden class ✋ used
+  - Object form  ✋ used
+  - instance ✋ used
+  - Introspection ✋ used
+  - Reflection 👂heard
 - Patterns
   - Singleton
-  - Factory Method
-  - Abstract Factory
+  - Factory Method ✋used
+  - Abstract Factory ✋ used
   - Adapter
   - Observer
   - Strategy
   - Facade
-  - Proxy
+  - Proxy 👂heard
   - Chain of Responsibility
   - Command
   - Iterator ✋used
   - State
-  - Bridge
+  - Bridge ✋ used
   - Builder
   - Prototype
   - Composite
@@ -62,5 +62,5 @@
   - Flyweight
   - Mediator
   - Memento
-  - Template Method
+  - Template Method ✋ used
   - Visitor
diff --git a/Skills/Programming.md b/Skills/Programming.md
index 5d1d8929..e1e581cd 100644
--- a/Skills/Programming.md
+++ b/Skills/Programming.md
@@ -6,7 +6,7 @@
   - variable ✋ used
   - constant ✋ used
   - scalar 👂 heard
-  - literal 👂heard
+  - literal ✋ used
   - expression ✋ used
   - heap 👂 heard
   - function ✋ used
@@ -14,7 +14,7 @@
   - method ✋ used
   - class ✋ used
   - prototype 👂 heard
-  - event 👂 heard
+  - event ✋ used
   - type ✋ used 
   - primitive types ✋ used
   - reference types ✋ used
@@ -25,26 +25,26 @@
   - loops ✋ used
   - assignment ✋ used
   - regular expression ✋ used 
-  - interface
+  - interface ✋ used 
   - contract
-  - module
+  - module ✋ used 
   - call stack
 - Functions
   - signature
   - argument ✋ used 
   - parameter ✋ used 
   - pure function
-  - lambda expression
-  - side effects
+  - lambda expression 👂 heard
+  - side effects 
   - closure
   - partial application
   - curry
   - higher order
   - recursion ✋ used
-  - callback
+  - callback 👂 heard
   - listener
   - compose
-  - pipe
+  - pipe 👂 heard
   - memoize
   - wrapper
   - functor
@@ -73,34 +73,34 @@
   - tree ✋ used
   - graph ✋ used
   - iterator ✋ used
-  - mutable state
-  - immutable state 👂 heard
+  - mutable state ✋ used
+  - immutable state ✋ used
   - serialization
-  - string parsing 👂 heard
+  - string parsing ✋ used
 - Process & style
   - compiler ✋ used
   - transpiler
-  - linter
+  - linter ✋ used
   - polyfill
   - debugger ✋ used
   - garbage collection
   - refactoring ✋ used
   - code review ✋ used
-  - antipatterns 👂 heard
-  - paradigm 👂 heard
+  - antipatterns 🎓 known
+  - paradigm 🎓 known
   - algorithm 🎓 known
   - magic numbers 
   - hardcode ✋ used
   - complexity
   - decomposition 👂heard 
-  - spaghetti ✋ used
+  - spaghetti 🎓 known
   - silver bullet
   - not invented here ✋ used
   - dead code 🎓 known
   - unreachable code 🎓 known
-  - duplicate code ✋ used
+  - duplicate code 🎓 known
   - exception ✋ used
   - return early
   - unittest
-  - git 👂heard
+  - git ✋ used
   - github ✋ used