diff --git a/fa/build.go b/fa/build.go
deleted file mode 100644
index fbf7e662..00000000
--- a/fa/build.go
+++ /dev/null
@@ -1,118 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"regexp"
-	"strings"
-
-	"github.com/fairlyblank/md2min"
-)
-
-// 定义一个访问者结构体
-type Visitor struct{}
-
-func (self *Visitor) md2html(arg map[string]string) error {
-	from := arg["from"]
-	to := arg["to"]
-	err := filepath.Walk(from+"/", func(path string, f os.FileInfo, err error) error {
-		if f == nil {
-			return err
-		}
-		if f.IsDir() {
-			return nil
-		}
-		if (f.Mode() & os.ModeSymlink) > 0 {
-			return nil
-		}
-		if !strings.HasSuffix(f.Name(), ".md") {
-			return nil
-		}
-
-		file, err := os.Open(path)
-		if err != nil {
-			return err
-		}
-
-		input_byte, _ := ioutil.ReadAll(file)
-		input := string(input_byte)
-		input = regexp.MustCompile(`\[(.*?)\]\(<?(.*?)\.md>?\)`).ReplaceAllString(input, "[$1](<$2.html>)")
-
-		if f.Name() == "README.md" {
-			input = regexp.MustCompile(`https:\/\/github\.com\/astaxie\/build-web-application-with-golang\/blob\/master\/`).ReplaceAllString(input, "")
-		}
-
-		// 以#开头的行，在#后增加空格
-		// 以#开头的行, 删除多余的空格
-		input = FixHeader(input)
-
-		// 删除页面链接
-		input = RemoveFooterLink(input)
-
-		// remove image suffix
-		input = RemoveImageLinkSuffix(input)
-
-		var out *os.File
-		filename := strings.Replace(f.Name(), ".md", ".html", -1)
-		fmt.Println(to + "/" + filename)
-		if out, err = os.Create(to + "/" + filename); err != nil {
-			fmt.Fprintf(os.Stderr, "Error creating %s: %v", f.Name(), err)
-			os.Exit(-1)
-		}
-		defer out.Close()
-		md := md2min.New("none")
-		err = md.Parse([]byte(input), out)
-		if err != nil {
-			fmt.Fprintln(os.Stderr, "Parsing Error", err)
-			os.Exit(-1)
-		}
-
-		return nil
-	})
-	return err
-}
-
-func FixHeader(input string) string {
-	re_header := regexp.MustCompile(`(?m)^#.+$`)
-	re_sub := regexp.MustCompile(`^(#+)\s*(.+)$`)
-	fixer := func(header string) string {
-		s := re_sub.FindStringSubmatch(header)
-		return s[1] + " " + s[2]
-	}
-	return re_header.ReplaceAllStringFunc(input, fixer)
-}
-
-func RemoveFooterLink(input string) string {
-	re_footer := regexp.MustCompile(`(?m)^#{2,} links.*?\n(.+\n)*`)
-	return re_footer.ReplaceAllString(input, "")
-}
-
-func RemoveImageLinkSuffix(input string) string {
-	re_footer := regexp.MustCompile(`png\?raw=true`)
-	return re_footer.ReplaceAllString(input, "png")
-}
-
-func main() {
-	tmp := os.Getenv("TMP")
-	if tmp == "" {
-		tmp = "."
-	}
-
-	workdir := os.Getenv("WORKDIR")
-	if workdir == "" {
-		workdir = "."
-	}
-
-	arg := map[string]string{
-		"from": workdir,
-		"to":   tmp,
-	}
-
-	v := &Visitor{}
-	err := v.md2html(arg)
-	if err != nil {
-		fmt.Printf("filepath.Walk() returned %v\n", err)
-	}
-}
diff --git a/fa/build.sh b/fa/build.sh
deleted file mode 100755
index 4f4f7a76..00000000
--- a/fa/build.sh
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/bin/bash
-
-SED='sed'
-
-if [ `uname -s` == 'Darwin' ] ; then
-  SED='gsed'
-fi
-
-bn="`basename $0`"
-WORKDIR="$(cd $(dirname $0); pwd -P)"
-
-#
-# Default language: zh
-# You can overwrite following variables in config file.
-#
-MSG_INSTALL_PANDOC_FIRST='请先安装pandoc，然后再次运行'
-MSG_SUCCESSFULLY_GENERATED='build-web-application-with-golang.epub 已经建立'
-MSG_CREATOR='Astaxie'
-MSG_DESCRIPTION='一本开源的Go Web编程书籍'
-MSG_LANGUAGE='zh-CN'
-MSG_TITLE='Go Web编程'
-[ -e "$WORKDIR/config" ] && . "$WORKDIR/config"
-
-
-TMP=`mktemp -d 2>/dev/null || mktemp -d -t "${bn}"` || exit 1
-trap 'rm -rf "$TMP"' 0 1 2 3 15
-
-
-cd "$TMP"
-
-(
-[ go list github.com/fairlyblank/md2min >/dev/null 2>&1 ] || export GOPATH="$PWD"
-go get -u github.com/fairlyblank/md2min
-WORKDIR="$WORKDIR" TMP="$TMP" go run "$WORKDIR/build.go"
-)
-
-if [ ! type -P pandoc >/dev/null 2>&1 ]; then
-	echo "$MSG_INSTALL_PANDOC_FIRST"
-	exit 0
-fi
-
-cat <<__METADATA__ > metadata.txt
-<dc:creator>$MSG_CREATOR</dc:creator>
-<dc:description>$MSG_DESCRIPTION</dc:description>
-<dc:language>$MSG_LANGUAGE</dc:language>
-<dc:rights>Creative Commons</dc:rights>
-<dc:title>$MSG_TITLE</dc:title>
-__METADATA__
-
-mkdir -p $TMP/images
-cp -r $WORKDIR/images/* $TMP/images/
-ls [0-9]*.html | xargs $SED -i "s/png?raw=true/png/g"
-
-pandoc --reference-links -S --toc -f html -t epub --epub-metadata=metadata.txt --epub-cover-image="$WORKDIR/images/cover.png" -o "$WORKDIR/../build-web-application-with-golang.epub" `ls [0-9]*.html | sort`
-
-echo "$MSG_SUCCESSFULLY_GENERATED"