diff --git a/opentelemetry/proto/profiles/v1development/profiles.proto b/opentelemetry/proto/profiles/v1development/profiles.proto
index f8f0c837..aac32d9d 100644
--- a/opentelemetry/proto/profiles/v1development/profiles.proto
+++ b/opentelemetry/proto/profiles/v1development/profiles.proto
@@ -138,20 +138,46 @@ message ProfilesData {
   // corresponding to the given stack tree node. The two arrays must have the
   // same length. The parent array uses -1 for the root nodes.
   //
-  // For example, the following location and stack tree data:
+  // For example, the following locations and stack tree data:
   //
-  // location_table = ["", "main", "foo", "bar", "baz1", "baz2"]
-  // (stack index)        =   0  1  2  3  4  5
-  // stack_parent_array   = [-1, 0, 1, 2, 2, 1]
-  // stack_location_index = [ 1, 2, 3, 4, 5, 5]
+  // +-------------+----------------+--------------------+----------------------+
+  // | stack index | location_table | stack_parent_array | stack_location_index |
+  // +-------------+----------------+--------------------+----------------------+
+  // |      0      | ""             |        -1          |          1           |
+  // |      1      | "main"         |         0          |          2           |
+  // |      2      | "foo"          |         1          |          3           |
+  // |      3      | "bar"          |         2          |          4           |
+  // |      4      | "baz1"         |         2          |          5           |
+  // |      5      | "baz2"         |         1          |          5           |
+  // +-------------+----------------+--------------------+----------------------+
   //
   // are encoding these stacks (the number is the stack index):
   //
-  //   main|0 -> foo|1 -> bar|2
-  //   main|0 -> foo|1 -> bar|2 -> baz1|3
-  //   main|0 -> foo|1 -> bar|2 -> baz2|4
-  //   main|0 -> foo|1 -> baz2|5
+  // main (0)
+  // └── foo (1)
+  //     ├── bar (2)
+  //     │   ├── baz1 (3)
+  //     │   └── baz2 (4)
+  //     └── baz2 (5)
   //
+  // And here is an example of the operations to decode the stack trace
+  // "main->foo->bar->baz2" at stack index 4.
+  //
+  // 1. Lookup stack_location_index[4]  = 5
+  // 2. Lookup location_table[5]        = "baz2"
+  // 3. Lookup stack_parent_array[4]    = 2
+  //
+  // 4. Lookup stack_location_index[2]  = 3
+  // 5. Lookup location_table[3]        = "bar"
+  // 6. Lookup stack_parent_array[2]    = 1
+  //
+  // 7. Lookup stack_location_index[1]  = 2
+  // 8. Lookup location_table[2]        = "foo"
+  // 9. Lookup stack_parent_array[1]    = 0
+  //
+  // 10. Lookup stack_location_index[0] = 1
+  // 11. Lookup location_table[1]       = "main"
+  // 12. Lookup stack_parent_array[0]   = -1
   repeated int32 stack_parent_array = 9;
   repeated int32 stack_location_index = 10;
 }