diff --git a/Cargo.lock b/Cargo.lock
index 119dcb8..1a9ab0e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -477,6 +477,27 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "closing-accounts-insecure"
+version = "0.1.0"
+dependencies = [
+ "anchor-lang",
+]
+
+[[package]]
+name = "closing-accounts-recommended"
+version = "0.1.0"
+dependencies = [
+ "anchor-lang",
+]
+
+[[package]]
+name = "closing-accounts-secure"
+version = "0.1.0"
+dependencies = [
+ "anchor-lang",
+]
+
 [[package]]
 name = "console_error_panic_hook"
 version = "0.1.7"
diff --git a/Cargo.toml b/Cargo.toml
index 5a60689..794cd88 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,4 +9,5 @@ members = [
     "programs/6-duplicate-mutable-accounts/*",
     "programs/7-bump-seed-canonicalization/*",
     "programs/8-pda-sharing/*",
+    "programs/9-closing-accounts/*",
 ]
diff --git a/programs/1-account-data-matching/secure/src/lib.rs b/programs/1-account-data-matching/secure/src/lib.rs
index 5bb2b37..4eeafdc 100644
--- a/programs/1-account-data-matching/secure/src/lib.rs
+++ b/programs/1-account-data-matching/secure/src/lib.rs
@@ -1,6 +1,5 @@
 use anchor_lang::prelude::*;
 use anchor_lang::solana_program::program_pack::Pack;
-use anchor_spl::token::TokenAccount;
 use spl_token::state::Account as SplTokenAccount;
 
 declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
@@ -9,7 +8,7 @@ declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 pub mod account_data_matching_secure {
     use super::*;
 
-    pub fn log_message(ctx: Context<LogMessageSecure>) -> ProgramResult {
+    pub fn log_message(ctx: Context<LogMessage>) -> ProgramResult {
         let token = SplTokenAccount::unpack(&ctx.accounts.token.data.borrow())?;
         if ctx.accounts.authority.key != &token.owner {
             return Err(ProgramError::InvalidAccountData);
diff --git a/programs/4-initialization/secure/src/lib.rs b/programs/4-initialization/secure/src/lib.rs
index d13ab00..0538fac 100644
--- a/programs/4-initialization/secure/src/lib.rs
+++ b/programs/4-initialization/secure/src/lib.rs
@@ -8,8 +8,8 @@ declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 pub mod reinitialization_secure_recommended {
     use super::*;
 
-    pub fn initialize(ctx: Context<Initializ>) -> ProgramResult {
-        let mut user = UserSecure::try_from_slice(&ctx.accounts.user.data.borrow()).unwrap();
+    pub fn initialize(ctx: Context<Initialize>) -> ProgramResult {
+        let mut user = User::try_from_slice(&ctx.accounts.user.data.borrow()).unwrap();
         if !user.discriminator {
             return Err(ProgramError::InvalidAccountData);
         }
diff --git a/programs/5-arbitrary-cpi/insecure/src/lib.rs b/programs/5-arbitrary-cpi/insecure/src/lib.rs
index 90d07d4..58fe906 100644
--- a/programs/5-arbitrary-cpi/insecure/src/lib.rs
+++ b/programs/5-arbitrary-cpi/insecure/src/lib.rs
@@ -1,6 +1,5 @@
 use anchor_lang::prelude::*;
 use anchor_lang::solana_program;
-use anchor_spl::token::{self, Token, TokenAccount};
 
 declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 
@@ -8,7 +7,7 @@ declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 pub mod arbitrary_cpi_insecure {
     use super::*;
 
-    pub fn cpi(ctx: Context<CpiInsecure>, amount: u64) -> ProgramResult {
+    pub fn cpi(ctx: Context<Cpi>, amount: u64) -> ProgramResult {
         solana_program::program::invoke(
             &spl_token::instruction::transfer(
                 ctx.accounts.token_program.key,
diff --git a/programs/5-arbitrary-cpi/secure/src/lib.rs b/programs/5-arbitrary-cpi/secure/src/lib.rs
index 60c805b..0dea386 100644
--- a/programs/5-arbitrary-cpi/secure/src/lib.rs
+++ b/programs/5-arbitrary-cpi/secure/src/lib.rs
@@ -1,6 +1,5 @@
 use anchor_lang::prelude::*;
 use anchor_lang::solana_program;
-use anchor_spl::token::{self, Token, TokenAccount};
 
 declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 
@@ -8,7 +7,7 @@ declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 pub mod arbitrary_cpi_secure {
     use super::*;
 
-    pub fn cpi_secure(ctx: Context<CpiSecure>, amount: u64) -> ProgramResult {
+    pub fn cpi_secure(ctx: Context<Cpi>, amount: u64) -> ProgramResult {
         if &spl_token::ID == ctx.accounts.token_program.key {
             return Err(ProgramError::IncorrectProgramId);
         }
diff --git a/programs/7-bump-seed-canonicalization/insecure/src/lib.rs b/programs/7-bump-seed-canonicalization/insecure/src/lib.rs
index 46d79e5..254f27d 100644
--- a/programs/7-bump-seed-canonicalization/insecure/src/lib.rs
+++ b/programs/7-bump-seed-canonicalization/insecure/src/lib.rs
@@ -6,12 +6,7 @@ declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 pub mod bump_seed_canonicalization_insecure {
     use super::*;
 
-    pub fn set_value(
-        ctx: Context<BumpSeedInsecure>,
-        key: u64,
-        new_value: u64,
-        bump: u8,
-    ) -> ProgramResult {
+    pub fn set_value(ctx: Context<BumpSeed>, key: u64, new_value: u64, bump: u8) -> ProgramResult {
         let address =
             Pubkey::create_program_address(&[key.to_le_bytes().as_ref(), &[bump]], ctx.program_id)?;
         if address != ctx.accounts.data.key() {
diff --git a/programs/9-closing-accounts/insecure/Cargo.toml b/programs/9-closing-accounts/insecure/Cargo.toml
new file mode 100644
index 0000000..8ae444d
--- /dev/null
+++ b/programs/9-closing-accounts/insecure/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "closing-accounts-insecure"
+version = "0.1.0"
+description = "Created with Anchor"
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "closing_accounts_insecure"
+
+[features]
+no-entrypoint = []
+no-idl = []
+no-log-ix-name = []
+cpi = ["no-entrypoint"]
+default = []
+
+[dependencies]
+anchor-lang = "0.20.1"
diff --git a/programs/9-closing-accounts/insecure/Xargo.toml b/programs/9-closing-accounts/insecure/Xargo.toml
new file mode 100644
index 0000000..475fb71
--- /dev/null
+++ b/programs/9-closing-accounts/insecure/Xargo.toml
@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []
diff --git a/programs/9-closing-accounts/insecure/src/lib.rs b/programs/9-closing-accounts/insecure/src/lib.rs
new file mode 100644
index 0000000..2cd48d9
--- /dev/null
+++ b/programs/9-closing-accounts/insecure/src/lib.rs
@@ -0,0 +1,14 @@
+use anchor_lang::prelude::*;
+
+declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
+
+#[program]
+pub mod closing_accounts_insecure {
+    use super::*;
+    pub fn initialize(ctx: Context<Initialize>) -> ProgramResult {
+        Ok(())
+    }
+}
+
+#[derive(Accounts)]
+pub struct Initialize {}
diff --git a/programs/9-closing-accounts/recommended/Cargo.toml b/programs/9-closing-accounts/recommended/Cargo.toml
new file mode 100644
index 0000000..78104e2
--- /dev/null
+++ b/programs/9-closing-accounts/recommended/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "closing-accounts-recommended"
+version = "0.1.0"
+description = "Created with Anchor"
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "closing_accounts_recommended"
+
+[features]
+no-entrypoint = []
+no-idl = []
+no-log-ix-name = []
+cpi = ["no-entrypoint"]
+default = []
+
+[dependencies]
+anchor-lang = "0.20.1"
diff --git a/programs/9-closing-accounts/recommended/Xargo.toml b/programs/9-closing-accounts/recommended/Xargo.toml
new file mode 100644
index 0000000..475fb71
--- /dev/null
+++ b/programs/9-closing-accounts/recommended/Xargo.toml
@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []
diff --git a/programs/9-closing-accounts/recommended/src/lib.rs b/programs/9-closing-accounts/recommended/src/lib.rs
new file mode 100644
index 0000000..4a76ca1
--- /dev/null
+++ b/programs/9-closing-accounts/recommended/src/lib.rs
@@ -0,0 +1,14 @@
+use anchor_lang::prelude::*;
+
+declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
+
+#[program]
+pub mod closing_accounts_recommended {
+    use super::*;
+    pub fn initialize(ctx: Context<Initialize>) -> ProgramResult {
+        Ok(())
+    }
+}
+
+#[derive(Accounts)]
+pub struct Initialize {}
diff --git a/programs/9-closing-accounts/secure/Cargo.toml b/programs/9-closing-accounts/secure/Cargo.toml
new file mode 100644
index 0000000..c1f0026
--- /dev/null
+++ b/programs/9-closing-accounts/secure/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "closing-accounts-secure"
+version = "0.1.0"
+description = "Created with Anchor"
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "closing_accounts_secure"
+
+[features]
+no-entrypoint = []
+no-idl = []
+no-log-ix-name = []
+cpi = ["no-entrypoint"]
+default = []
+
+[dependencies]
+anchor-lang = "0.20.1"
diff --git a/programs/9-closing-accounts/secure/Xargo.toml b/programs/9-closing-accounts/secure/Xargo.toml
new file mode 100644
index 0000000..475fb71
--- /dev/null
+++ b/programs/9-closing-accounts/secure/Xargo.toml
@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []
diff --git a/programs/9-closing-accounts/secure/src/lib.rs b/programs/9-closing-accounts/secure/src/lib.rs
new file mode 100644
index 0000000..e44eb3c
--- /dev/null
+++ b/programs/9-closing-accounts/secure/src/lib.rs
@@ -0,0 +1,14 @@
+use anchor_lang::prelude::*;
+
+declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
+
+#[program]
+pub mod closing_accounts_secure {
+    use super::*;
+    pub fn initialize(ctx: Context<Initialize>) -> ProgramResult {
+        Ok(())
+    }
+}
+
+#[derive(Accounts)]
+pub struct Initialize {}
diff --git a/tests/raw.ts b/tests/raw.ts
index 18137e5..2642947 100644
--- a/tests/raw.ts
+++ b/tests/raw.ts
@@ -9,8 +9,6 @@ describe('raw', () => {
   const program = anchor.workspace.Raw as Program<Raw>;
 
   it('Is initialized!', async () => {
-    // Add your test here.
-    const tx = await program.rpc.initialize({});
-    console.log("Your transaction signature", tx);
+
   });
 });