diff --git a/academy/onchain_debug/03_write_your_own_poc/readme.md b/academy/onchain_debug/03_write_your_own_poc/readme.md
index 73a6df48..77a0009e 100644
--- a/academy/onchain_debug/03_write_your_own_poc/readme.md
+++ b/academy/onchain_debug/03_write_your_own_poc/readme.md
@@ -90,7 +90,7 @@ uint256 ETH_Price = UniV2_USDC_Reserve / UniV2_ETH_Reserve;
 
 ## 手把手撰寫 PoC - 以 EGD Finance 為例
 
-### Step1: Infomation gathering
+### Step1: Information gathering
 
 當攻擊發生時，通常 Twitter 會是安全分析師的主戰場，會有各路大佬在 Twitter 上發布自己對於攻擊事件的最新發現。
 
diff --git a/src/test/AkutarNFT_exp.sol b/src/test/AkutarNFT_exp.sol
index d8c0f503..ca122973 100644
--- a/src/test/AkutarNFT_exp.sol
+++ b/src/test/AkutarNFT_exp.sol
@@ -11,7 +11,7 @@ There are two serious logic vulnerabilities
 
 1. First can cause a DoS attack due to the missing check if the bidder is a contract. As a result, the attacker can call the revert() and stop the honest bidders from getting back their bid amount.
 
-2. The Second will make the project fund (more than 34M USD) being locked forever due to incorrect check in the require statment.
+2. The Second will make the project fund (more than 34M USD) being locked forever due to incorrect check in the require statement.
 
 forge test --contracts ./src/test/AkutarNFT_exp.sol -vv  
 */
diff --git a/src/test/BUNN_exp.sol b/src/test/BUNN_exp.sol
index 698bf399..0652a338 100644
--- a/src/test/BUNN_exp.sol
+++ b/src/test/BUNN_exp.sol
@@ -9,7 +9,7 @@ import "./interface.sol";
 // @TX
 // https://bscscan.com/tx/0x24a68d2a4bbb02f398d3601acfd87b09f543d935fc24862c314aaf64c295acdb
 // @Summary
-// Relfection token,call deliver function to decrease pairs token balance,and swap to get the profit.
+// Reelection token,call deliver function to decrease pairs token balance,and swap to get the profit.
 
 interface Bunn is IERC20 {
     function deliver(uint256 tAmount) external;
diff --git a/src/test/Cellframe_exp.sol b/src/test/Cellframe_exp.sol
index b37d61d6..4e8aa124 100644
--- a/src/test/Cellframe_exp.sol
+++ b/src/test/Cellframe_exp.sol
@@ -123,7 +123,7 @@ contract ContractTest is Test {
         uint256 lpAmount = CELL9.balanceOf(address(this)) / 10;
         emit log_named_uint("Amount of liquidity to migrate (for one migrate call)", lpAmount);
 
-        // 8 calls to migrate were successfull. Ninth - revert in attack tx.
+        // 8 calls to migrate were successfully. Ninth - revert in attack tx.
         for (uint256 i; i < 9; ++i) {
             LpMigration.migrate(lpAmount);
         }