diff --git a/README.md b/README.md
index 300049c..edb11df 100644
--- a/README.md
+++ b/README.md
@@ -34,11 +34,11 @@ Ledisdb is a high performance nosql like redis based on leveldb written by go. I
     ./ledis-server -config=/etc/ledis.json
 
     //another shell
-    redis-cli -p 6380
+    ledis-cli -p 6380
     
-    redis 127.0.0.1:6380> set a 1
+    ledis 127.0.0.1:6380> set a 1
     OK
-    redis 127.0.0.1:6380> get a
+    ledis 127.0.0.1:6380> get a
     "1"
 
 ## Lib
@@ -56,9 +56,9 @@ Ledisdb is a high performance nosql like redis based on leveldb written by go. I
 
 set slaveof in config or dynamiclly
 
-    redis-cli -p 6381 
+    ledis-cli -p 6381 
 
-    redis 127.0.0.1:6381> slaveof 127.0.0.1:6380
+    ledis 127.0.0.1:6381> slaveof 127.0.0.1:6380
     OK
 
 ## Benchmark
diff --git a/README_CN.md b/README_CN.md
index 6404574..a79ccc5 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -41,11 +41,11 @@ ledisdb是一个用go实现的类似redis的高性能nosql数据库，底层基
     ./ledis-server -config=/etc/ledis.json
 
     //another shell
-    redis-cli -p 6380
+    ledis-cli -p 6380
     
-    redis 127.0.0.1:6380> set a 1
+    ledis 127.0.0.1:6380> set a 1
     OK
-    redis 127.0.0.1:6380> get a
+    ledis 127.0.0.1:6380> get a
     "1"
 
 ## 嵌入库
@@ -66,9 +66,9 @@ ledisdb是一个用go实现的类似redis的高性能nosql数据库，底层基
 
 通过配置或者运行时输入slaveof开启slave的replication功能
 
-    redis-cli -p 6381 
+    ledis-cli -p 6381 
 
-    redis 127.0.0.1:6381> slaveof 127.0.0.1:6380
+    ledis 127.0.0.1:6381> slaveof 127.0.0.1:6380
     OK
 
 ## Todo
diff --git a/client/go/ledis/doc.go b/client/go/ledis/doc.go
new file mode 100644
index 0000000..da1dcca
--- /dev/null
+++ b/client/go/ledis/doc.go
@@ -0,0 +1,45 @@
+// Package ledis is a client for the ledisdb.
+
+// Config
+
+// Config struct contains configuration for ledisdb:
+
+//     Addr            ledisdb server address, like 127.0.0.1:6380
+//     MaxIdleConns    max idle connections for ledisdb
+
+// Client
+
+// The client is the primary interface for ledisdb. You must first create a client with proper config for working.
+
+//     cfg := new(Config)
+//     cfg.Addr = "127.0.0.1:6380"
+//     cfg.MaxIdleConns = 4
+
+//     c := NewClient(cfg)
+
+// The most important function for client is Do function to send commands to remote server.
+
+//     reply, err := c.Do("ping")
+
+//     reply, err := c.Do("set", "key", "value")
+
+//     reply, err := c.Do("get", "key")
+
+// Connection
+
+// You can use an independent connection to send commands.
+
+//     //get a connection
+//     conn := c.Get()
+
+//     //connection send command
+//     conn.Do("ping")
+
+// Reply Helper
+
+// You can use reply helper to convert a reply to a specific type.
+
+//     exists, err := ledis.Bool(c.Do("exists", "key"))
+
+//     score, err := ledis.Int64(c.Do("zscore", "key", "member"))
+package ledis
diff --git a/ledis/doc.go b/ledis/doc.go
new file mode 100644
index 0000000..4603637
--- /dev/null
+++ b/ledis/doc.go
@@ -0,0 +1,56 @@
+// Package ledis is a high performance embedded NoSQL based on leveldb.
+// Ledis supports various advanced data structure like kv, list, hash and zset like redis.
+
+// Other features include binlog replication, data with a limited time-to-live.
+
+// First create a ledis instance before use:
+
+//  l := ledis.OpenWithConfig(cfg)
+
+// cfg is a Config instance which contains configuration for ledis use,
+// like DataDir (root directory for ledis working to store data).
+
+// After you create a ledis instance, you can select a DB to store you data:
+
+//  db, _ := l.Select(0)
+
+// DB must be selected by a index, ledis supports only 16 databases, so the index range is [0-15].
+
+// KV
+
+// KV is the most basic ledis type like any other key-value database.
+
+//  err := db.Set(key, value)
+//  value, err := db.Get(key)
+
+// List
+
+// List is simply lists of values, sorted by insertion order.
+// You can push or pop value on the list head (left) or tail (right).
+
+//  err := db.LPush(key, value1)
+//  err := db.RPush(key, value2)
+//  value1, err := db.LPop(key)
+//  value2, err := db.RPop(key)
+
+// Hash
+
+// Hash is a map between fields and values.
+
+//  n, err := db.HSet(key, field1, value1)
+//  n, err := db.HSet(key, field2, value2)
+//  value1, err := db.HGet(key, field1)
+//  value2, err := db.HGet(key, field2)
+
+// ZSet
+
+// ZSet is a sorted collections of values.
+// Every member of zset is associated with score, a int64 value which used to sort, from smallest to greatest score.
+// Members are unique, but score may be same.
+
+//  n, err := db.ZAdd(key, ScorePair{score1, member1}, ScorePair{score2, member2})
+//  ay, err := db.ZRangeByScore(key, minScore, maxScore, 0, -1)
+
+// Binlog
+// ledis supports binlog, so you can sync binlog to another server for replication. If you want to open binlog support, set UseBinLog to true in config.
+package ledis
diff --git a/server/doc.go b/server/doc.go
new file mode 100644
index 0000000..30e25cf
--- /dev/null
+++ b/server/doc.go
@@ -0,0 +1,25 @@
+// Package server supplies a way to use ledis as service.
+// Server implements the redis protocol called RESP (REdis Serialization Protocol).
+// For more information, please see http://redis.io/topics/protocol.
+
+// You can use ledis with many available redis clients directly, for example, redis-cli.
+// But I also supply some ledis client at client folder, and have been adding more for other languages.
+
+// Start a ledis server is very simple:
+
+//  cfg := new(Config)
+//  cfg.Addr = "127.0.0.1:6380"
+//  cfg.DataDir = "/tmp/ledis"
+//  app := server.NewApp(cfg)
+//  app.Run()
+
+// Replication
+// You can start a slave ledis server for replication, open slave is simple too, you can set slaveof in config or run slaveof command in shell.
+
+// For example, if you start a slave server, and the master server's address is 127.0.0.1:6380, you can start replication in shell:
+
+//  ledis-cli -p 6381
+//  ledis 127.0.0.1:6381 > slaveof 127.0.0.1 6380
+
+// After you send slaveof command, the slave will start to sync master's binlog and replicate from binlog.
+package server