diff --git a/ib002/01-introduction/_category_.yaml b/ib002/01-introduction/_category_.yaml
index 0322c3b..f3c1742 100644
--- a/ib002/01-introduction/_category_.yaml
+++ b/ib002/01-introduction/_category_.yaml
@@ -1,4 +1,4 @@
-label: Introduction, linked list, queue and stack
+label: Introduction, Linked List, Queue and Stack
 position: 1
 link:
   type: generated-index
diff --git a/ib002/02-algorithms-correctness/_category_.yaml b/ib002/02-algorithms-correctness/_category_.yaml
index 63095c8..291e1e5 100644
--- a/ib002/02-algorithms-correctness/_category_.yaml
+++ b/ib002/02-algorithms-correctness/_category_.yaml
@@ -1,4 +1,4 @@
-label: Algorithms and correctness
+label: Algorithms and Correctness
 position: 2
 link:
   type: generated-index
diff --git a/ib002/03-time-complexity/_category_.yaml b/ib002/03-time-complexity/_category_.yaml
index 741f7f1..c261132 100644
--- a/ib002/03-time-complexity/_category_.yaml
+++ b/ib002/03-time-complexity/_category_.yaml
@@ -1,4 +1,4 @@
-label: Asymptotic notation and time complexity
+label: Asymptotic Notation and Time Complexity
 position: 3
 link:
   type: generated-index
diff --git a/ib002/05-sorting/_category_.yaml b/ib002/05-sorting/_category_.yaml
index 578aa07..5f1c372 100644
--- a/ib002/05-sorting/_category_.yaml
+++ b/ib002/05-sorting/_category_.yaml
@@ -1,4 +1,4 @@
-label: Sorting algorithms
+label: Sorting Algorithms
 position: 5
 link:
   type: generated-index
diff --git a/ib002/06-heap-priority-queue/_category_.yaml b/ib002/06-heap-priority-queue/_category_.yaml
index ce97aa8..aa7ca59 100644
--- a/ib002/06-heap-priority-queue/_category_.yaml
+++ b/ib002/06-heap-priority-queue/_category_.yaml
@@ -1,4 +1,4 @@
-label: Heap and priority queue
+label: Heap and Priority Queue
 position: 6
 link:
   type: generated-index
diff --git a/ib002/07-bst/_category_.yaml b/ib002/07-bst/_category_.yaml
index 36b7773..1df1505 100644
--- a/ib002/07-bst/_category_.yaml
+++ b/ib002/07-bst/_category_.yaml
@@ -1,4 +1,4 @@
-label: Binary search trees
+label: Binary Search Trees
 position: 7
 link:
   type: generated-index
diff --git a/ib002/08-rb-trees/_category_.yaml b/ib002/08-rb-trees/_category_.yaml
index 73f1331..4aa0170 100644
--- a/ib002/08-rb-trees/_category_.yaml
+++ b/ib002/08-rb-trees/_category_.yaml
@@ -1,4 +1,4 @@
-label: Red-black trees
+label: Red-Black Trees
 position: 8
 link:
   type: generated-index
diff --git a/ib002/09-b-trees/_category_.yaml b/ib002/09-b-trees/_category_.yaml
index 6cbe80f..d89bdfe 100644
--- a/ib002/09-b-trees/_category_.yaml
+++ b/ib002/09-b-trees/_category_.yaml
@@ -1,4 +1,4 @@
-label: B-trees
+label: B-Trees
 position: 9
 link:
   type: generated-index
diff --git a/ib002/11-paths/_category_.yaml b/ib002/11-paths/_category_.yaml
index 94cdd47..e2d53d2 100644
--- a/ib002/11-paths/_category_.yaml
+++ b/ib002/11-paths/_category_.yaml
@@ -1,4 +1,4 @@
-label: Paths in graphs
+label: Paths in Graphs
 position: 11
 link:
   type: generated-index
diff --git a/ib002/12-hash-tables/_category_.yaml b/ib002/12-hash-tables/_category_.yaml
index b051b17..76bb58c 100644
--- a/ib002/12-hash-tables/_category_.yaml
+++ b/ib002/12-hash-tables/_category_.yaml
@@ -1,4 +1,4 @@
-label: Hash tables
+label: Hash Tables
 position: 12
 link:
   type: generated-index