diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
index 30790d4174..e691b5db86 100644
--- a/book/src/SUMMARY.md
+++ b/book/src/SUMMARY.md
@@ -57,6 +57,16 @@
   - [Ledger Replication](ledger-replication-to-implement.md)
   - [Secure Vote Signing](vote-signing-to-implement.md)
   - [Staking Rewards](staking-rewards.md)
+  - [Cluster Test Framework](cluster-test-framework.md)
+  - [Validator](validator-proposal.md)
+  - [Simple Payment and State Verification](simple-payment-and-state-verification.md)
+  - [Cross-Program Invocation](cross-program-invocation.md)
+  - [Rent](rent.md)
+  - [Inter-chain Transaction Verification](interchain-transaction-verification.md)
+
+- [Implemented Design Proposals](implemented-proposals.md)
+  - [Blocktree](blocktree.md)
+  - [Cluster Software Installation and Updates](installer.md)
   - [Cluster Economics](ed_overview.md)
     - [Validation-client Economics](ed_validation_client_economics.md)
       - [State-validation Protocol-based Rewards](ed_vce_state_validation_protocol_based_rewards.md)
@@ -70,16 +80,6 @@
     - [Attack Vectors](ed_attack_vectors.md)
 	- [Economic Design MVP](ed_mvp.md)
     - [References](ed_references.md)
-  - [Cluster Test Framework](cluster-test-framework.md)
-  - [Validator](validator-proposal.md)
-  - [Simple Payment and State Verification](simple-payment-and-state-verification.md)
-  - [Cross-Program Invocation](cross-program-invocation.md)
-  - [Rent](rent.md)
-  - [Inter-chain Transaction Verification](interchain-transaction-verification.md)
-
-- [Implemented Design Proposals](implemented-proposals.md)
-  - [Blocktree](blocktree.md)
-  - [Cluster Software Installation and Updates](installer.md)
   - [Deterministic Transaction Fees](transaction-fees.md)
   - [Tower BFT](tower-bft.md)
   - [Leader-to-Leader Transition](leader-leader-transition.md)