diff --git a/README.md b/README.md
index e764a8f..395d2fc 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ $ book sm --help
 
     -h, --help                    output usage information
     -r, --root [string]           root folder, default is `.`
-    -n, --bookname [string]       book name, default is `Your Book Name`.
+    -t, --title [string]          book title, default is `Your Book Title`.
     -c, --catalog [list]          catalog folders included book files, default is `all`.
     -i, --ignores [list]          ignore folders that be excluded, default is `[]`.
     -u, --unchanged [list]        unchanged catalog like `request.js`, default is `[]`.
@@ -91,7 +91,7 @@ for example:
 ```
 // test/books/config-json/book.json
 {
-    "bookname": "json-config-name",
+    "title": "json-config-name",
     "outputfile": "test.md",
     "catalog": "all",  // or [chapter1，chapter2, ...]
     "ignores": [],  //Default: '.*', '_book'...
diff --git a/bin/summary.js b/bin/summary.js
index 8f3a77d..f8ec4d2 100755
--- a/bin/summary.js
+++ b/bin/summary.js
@@ -21,7 +21,7 @@ program
   .alias("sm")
   .description("Generate a `SUMMARY.md` from a folder")
   .option("-r, --root [string]", "root folder, default is `.`")
-  .option("-n, --bookname [string]", "book name, default is `Your Book Name`.")
+  .option("-t, --title [string]", "book title, default is `Your Book Title`.")
   .option("-c, --catalog [list]", "catalog folders included book files, default is `all`.")
   .option("-i, --ignores [list]", "ignore folders that be excluded, default is `[]`.", list)
   .option("-u, --unchanged [list]", "unchanged catalog like `request.js`, default is `[]`.")
diff --git a/lib/bookJson.js b/lib/bookJson.js
index 333c244..08ffa66 100644
--- a/lib/bookJson.js
+++ b/lib/bookJson.js
@@ -4,7 +4,7 @@ var path = require('path');
 function BookConfig(root) {
 
     var bookJson = path.resolve(root, 'book.json');
-    var book = config = {};
+    var book = {}, config = {};
 
     if (fs.existsSync(bookJson)) {
         config = require(bookJson);
@@ -17,7 +17,7 @@ function BookConfig(root) {
     book.catalog = config.catalog || 'all';
     book.ignores = config.ignores || [];
     book.unchanged = config.unchanged || [];
-    book.bookname = config.bookname || 'Your Book Name';
+    book.title = config.title || 'Your Book Title';
     book.sortedBy = config.sortedBy || '';
     book.disableTitleFormatting = config.disableTitleFormatting || false;
 
diff --git a/lib/summary/index.js b/lib/summary/index.js
index 8041114..0950ab7 100644
--- a/lib/summary/index.js
+++ b/lib/summary/index.js
@@ -15,7 +15,7 @@ var readFile = require('../files');
 
 // Give some variables
 var root,
-    bookname, // todo: don`t use `name`?
+    title, // todo: don`t use `name`?
     outputFile,
     catalog,
     ignores,
@@ -33,7 +33,7 @@ function init(options) {
     catalog = options.catalog || bookConfig.catalog;
     ignores = options.ignores || bookConfig.ignores;
     unchanged = options.unchanged || bookConfig.unchanged;
-    bookname = options.bookname || bookConfig.bookname;
+    title = options.title || bookConfig.title;
     sortedBy = options.sortedBy || bookConfig.sortedBy;
     disableTitleFormatting = options.disableTitleFormatting || bookConfig.disableTitleFormatting;
 }
@@ -71,8 +71,8 @@ function Summary(options) {
         }],
 
         write: ['parse', function(next) {
-            bookname = "# " + bookname + "\n\n";
-            result += bookname + desc;
+            title = "# " + title + "\n\n";
+            result += title + desc;
 
             writeFile(outputFile, result);
         }]
diff --git a/test/bookJson.test.js b/test/bookJson.test.js
index b73d52c..29bfcce 100644
--- a/test/bookJson.test.js
+++ b/test/bookJson.test.js
@@ -5,7 +5,7 @@ var should = require('should');
 var config = require('../lib/bookJson');
 
 describe('config.js', function () {
-	it('should get book.bookname if `book.json` exists', function () {
-		should(config('test/books/config-json').bookname).be.equal('json-config-name');
+	it('should get book.title if `book.json` exists', function () {
+		should(config('test/books/config-json').title).be.equal('json-config-name');
 	});
 });
diff --git a/test/books/config-json/book.json b/test/books/config-json/book.json
index aec1ae8..fc5908f 100644
--- a/test/books/config-json/book.json
+++ b/test/books/config-json/book.json
@@ -1,5 +1,5 @@
 {
-    "bookname": "json-config-name",
+    "title": "json-config-name",
     "outputfile": "test.md",
     "catalog": "all",
     "ignores": [],
diff --git a/test/index.test.js b/test/index.test.js
index fd3abe8..f5b093e 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -49,11 +49,11 @@ describe('summary/index.js', function() {
                 });
             });
 
-            it('given an option bookname, for example: book sm -n bookname', function() {
-                var bookname = 'This is a test book';
+            it('given an option title, for example: book sm -t title', function() {
+                var title = 'This is a test book';
                 summary({
                     root: bookRoot,
-                    bookname: bookname
+                    title: title
                 });
 
                 var summaryFile = path.resolve(bookRoot, 'SUMMARY.md');
@@ -67,10 +67,10 @@ describe('summary/index.js', function() {
             });
 
             it('given an option ignores, for example: book sm -i test', function() {
-                var bookname = 'This book has no test';
+                var title = 'This book has no test';
                 summary({
                     root: bookRoot,
-                    bookname: bookname,
+                    title: title,
                     ignores: ['test']
                 });