diff --git a/README-zh.md b/README-zh.md
index d7bd9f9..a377bbd 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -113,7 +113,7 @@ ANSWERS
 
 **[配置 WireGuard VPN 客户端](docs/clients-zh.md)**
 
-**阅读 [:book: VPN book](https://books2read.com/vpnzh) 以访问 [额外内容](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-X8X5FVFZC)。**
+**阅读 [:book: VPN book](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-X8X5FVFZC) 以访问 [额外内容](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-X8X5FVFZC)。**
 
 开始使用自己的专属 VPN! :sparkles::tada::rocket::sparkles:
 
diff --git a/README.md b/README.md
index b5b2e97..462528f 100644
--- a/README.md
+++ b/README.md
@@ -113,7 +113,7 @@ Get your computer or device to use the VPN. Please refer to:
 
 **[Configure WireGuard VPN Clients](docs/clients.md)**
 
-**Read [:book: VPN book](https://books2read.com/vpn) to access [extra content](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-O5O7FVF8J).**
+**Read [:book: VPN book](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-O5O7FVF8J) to access [extra content](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-O5O7FVF8J).**
 
 Enjoy your very own VPN! :sparkles::tada::rocket::sparkles:
 
diff --git a/docs/clients-zh.md b/docs/clients-zh.md
index f0e3017..d57921a 100644
--- a/docs/clients-zh.md
+++ b/docs/clients-zh.md
@@ -8,4 +8,7 @@
 
 要管理 WireGuard VPN 客户端，请再次运行安装脚本：`sudo bash wireguard.sh`。
 
-配置和管理 WireGuard VPN 客户端的分步说明请参见 [:book: Book: 搭建自己的 IPsec VPN, OpenVPN 和 WireGuard 服务器](https://books2read.com/vpnzh)。
+配置和管理 WireGuard VPN 客户端的分步说明请参见以下电子书：
+
+* [搭建自己的 VPN 服务器分步指南](https://books2read.com/vpnguidezh)
+* [搭建自己的 IPsec VPN, OpenVPN 和 WireGuard 服务器](https://books2read.com/vpnzh)
diff --git a/docs/clients.md b/docs/clients.md
index 7198754..8dc97c1 100644
--- a/docs/clients.md
+++ b/docs/clients.md
@@ -8,4 +8,7 @@ To add a VPN connection, open the WireGuard App on your mobile device, tap the "
 
 To manage WireGuard VPN clients, run the install script again: `sudo bash wireguard.sh`.
 
-Step-by-step instructions to configure and manage WireGuard VPN clients can be found in [:book: Book: Set Up Your Own IPsec VPN, OpenVPN and WireGuard Server](https://books2read.com/vpn).
+Step-by-step instructions to configure and manage WireGuard VPN clients can be found in the following books:
+
+* [Build Your Own VPN Server: A Step by Step Guide](https://books2read.com/vpnguide)
+* [Set Up Your Own IPsec VPN, OpenVPN and WireGuard Server](https://books2read.com/vpn)