diff --git a/books/duniayetu_dar/SUMMARY.md b/books/duniayetu_dar/SUMMARY.md
index 8ca9770..5105142 100644
--- a/books/duniayetu_dar/SUMMARY.md
+++ b/books/duniayetu_dar/SUMMARY.md
@@ -8,11 +8,11 @@
     - [TFNodes](farming_v4/tf_nodes.md)
 - [Vision](values/values.md)
     - [Planet and People First](values/planet_people_first.md)
-    - [Proof of Authenticity](values/poa.md)
+    - [Proof of Authenticity](p2p/poa.md)
 - [Problems](problems/problems.md)
-      - [painkillers and onions](problems/no_pain_killer.md)
-      - [Clouds are C   omplicated](problems/cd_issues_cloud_not_enough.md)
-      - [Content Delivery is Expensive](problems/cd_issues_cost.md)
+    - [Painkillers and Onions](problems/no_pain_killer.md)
+    - [Clouds are Complicated](problems/cd_issues_cloud_not_enough.md)
+    - [Content Delivery is Expensive](problems/cd_issues_cost.md)
 - [Solutions](solutions/solutions.md)
   - [Decentralized Cloud](solutions/cloud/cloud.md)
   - [Content Providers](solutions/content_providers/content_providers.md)
@@ -32,14 +32,14 @@
     - [About Us](dy_intro/dunia_yetu/about_us.md)
     - [Our Core Values](dy_intro/dunia_yetu/our_core_values.md)
     - [What We Offer](dy_intro/what_we_offer/what_we_offer.md)
-        - [A New Internet](dy_intro/what_we_offer/new_internet.md)
-        - [Coding Academy](dy_intro/what_we_offer/coding_academy.md)
-        - [Innovation Hubs](dy_intro/what_we_offer/innovation_hubs.md)
+      - [A New Internet](dy_intro/what_we_offer/new_internet.md)
+      - [Coding Academy](dy_intro/what_we_offer/coding_academy.md)
+      - [Innovation Hubs](dy_intro/what_we_offer/innovation_hubs.md)
     - [How you can Participate](dy_intro/how_you_can_participate/participate.md)
-        - [Host a Node](dy_intro/how_you_can_participate/host_a_node.md)
-        - [Build on top of Tanzania's decentralised Internet](dy_intro/how_you_can_participate/build.md)
-        - [Join Our Coding Academy](dy_intro/how_you_can_participate/coding_participate.md)
-        - [Join Our Community](dy_intro/how_you_can_participate/community_participate.md)
+      - [Host a Node](dy_intro/how_you_can_participate/host_a_node.md)
+      - [Build on top of Tanzania's decentralised Internet](dy_intro/how_you_can_participate/build.md)
+      - [Join Our Coding Academy](dy_intro/how_you_can_participate/coding_participate.md)
+      - [Join Our Community](dy_intro/how_you_can_participate/community_participate.md)
 - [SASHA sidebar](sasha/ilovezanzibar.md)