diff --git a/books/duniayetu_dar/SUMMARY.md b/books/duniayetu_dar/SUMMARY.md
index 98bb2b0..a1d7853 100644
--- a/books/duniayetu_dar/SUMMARY.md
+++ b/books/duniayetu_dar/SUMMARY.md
@@ -6,16 +6,28 @@
   - [Social Warming](why/social_warming.md)
 - [Farming](farming/farming.md)
     - [3Nodes](farming/3nodes.md)
-- [Vision](priciples/planet_people_first.md)
-    - [Proof of Authenticity](priciples/poa.md)
-- [Solutions](tfgrid_structure/solutions.md)
-  - [Decentralized Cloud](solutions/cloud.md)
-  - [Content Providing](solutions/content_providers.md)
+- [Vision](values/values.md)
+    - [Planet and People First](values/planet_people_first.md)
+    - [Proof of Authenticity](values/poa.md)
+- [Problems](problems/problems.md)
       - [painkillers and onions](problems/no_pain_killer.md)
-      - [clouds are complicated](problems/internet_infra/cloud_issues.md)
-      - [content delivery is expensive](problems/internet_infra/cdn_issues.md)
+      - [Clouds are C   omplicated](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)
       <!-- - [Social Media Platform]() -->
-  - [Web4](solutions/web4.md)
+  - [Web4](WEB4/web4.md)
+- [FreeFlow Movement](freeflow/freeflow_movement.md)
+     - [Community Principles](freeflow/community_principles/community_principles.md)
+- [Social Media Protocols](social_media_protocols/protocols.md)
+     - [Nostr Protocol](social_media_protocols/nostr.md)
+     - [Activity Pub](social_media_protocols/activitypub.md)
+     - [Activity Pub 2](social_media_protocols/activitypub2.md)
+- [Technology](web4/web4.md)
+     - [FreeFlow Self](web4/freeflowself/freeflowself.md)
+     - [Actor Based Development](web4/actor_based/actor_based_approach.md)
+     -  [Vlang](web4/vlang/vlang.md)
 - [Dunia Yetu](dy_intro/dunia_yetu/dunia_yetu.md)
     - [About Us](dy_intro/dunia_yetu/about_us.md)
     - [Our Core Values](dy_intro/dunia_yetu/our_core_values.md)
@@ -28,15 +40,7 @@
         - [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)
-- [FreeFlow Movement](freeflow_movement/freeflow_movement.md)
-    - [Community Principles](freeflow_movement/community_principles/community_principles.md)
-    - [Social Media Protocols](social_media_protocols/protocols.md)
-        - [Nostr Protocol](social_media_protocols/nostr.md)
-        - [Activity Pub](social_media_protocols/activitypub.md)
-        - [Activity Pub 2](social_media_protocols/activitypub2.md)
-    - [Technology](ffself_specs/tech.md)
-        - [Actor Based Development](ffself_specs/actor_based/actor_based_approach.md)
-        - [Vlang](ffself_specs/vlang/vlang.md)
+
 
 
 <!-- - [FreeFlow Self](ffself_specs/freeflowself/freeflowself.md) -->