diff --git a/README.md b/README.md
index ba875e2..1edd35e 100644
--- a/README.md
+++ b/README.md
@@ -266,6 +266,8 @@ Keybinding         | Description
 <kbd>F11</kbd>     | Make the window full screen.
 <kbd>F12</kbd>     | Toggle the Emacs menu bar.
 <kbd>C-x g</kbd>   | Open Magit's status buffer.
+<kbd>M-Z</kbd>     | Zap up to char.
+<kbd>C-c J</kbd> or <kbd>Super-></kbd>   | Switch between buffers with [`ace-jump-buffer`](https://github.com/waymondo/ace-jump-buffer)
 <kbd>C-=</kbd>     | Run `expand-region` (incremental text selection).
 <kbd>C-a</kbd>     | Run `prelude-move-beginning-of-line`. Read [this](http://emacsredux.com/blog/2013/05/22/smarter-navigation-to-the-beginning-of-a-line/) for details.
 
@@ -296,7 +298,6 @@ Keybinding         | Description
 <kbd>C-c t</kbd> | Open a terminal emulator (`ansi-term`).
 <kbd>C-c k</kbd> | Kill all open buffers except the one you're currently in.
 <kbd>C-c TAB</kbd> | Indent and copy region to clipboard
-<kbd>C-c h</kbd> | Open Helm (available if you've enabled the `prelude-helm` module).
 <kbd>C-c I</kbd> | Open user's init file.
 <kbd>C-c S</kbd> | Open shell's init file.
 <kbd>C-c . +</kbd> | Increment integer at point. Default is +1.
@@ -369,6 +370,40 @@ If you ever forget any of Projectile's keybindings just do a:
 
 <kbd>C-c p C-h</kbd>
 
+#### Helm
+
+Helm is setup according to this guide: [A Package in a league of its own: Helm](http://tuhdo.github.io/helm-intro.html).
+
+You can learn Helm usage and key bindings following the guide. <kbd>C-c h</kbd> is Prelude's default prefix key for Helm.
+If you don't remember any key binding, append <kbd>C-h</kbd> after <kbd>C-c h</kbd> for a list of key bindings in Helm.
+
+By default, Helm won't activate these global key bindings, so you can use Helm along with Ido and Prelude's default commands:
+
+Key binding        | Description
+-------------------|----------------------------------------------
+<kbd>M-x</kbd>     | Run [helm-M-x](http://tuhdo.github.io/helm-intro.html#sec-3), an interactive version of <kbd>M-x</kdb>.
+<kbd>M-y</kbd>     | Run [helm-show-kill-ring](http://tuhdo.github.io/helm-intro.html#sec-4), shows the content of `kill-ring`.
+<kbd>C-x b </kbd>  | Run [helm-mini](http://tuhdo.github.io/helm-intro.html#sec-5), an interactive version of `C-x b` with more features.
+<kbd>C-x C-f</kbd> | Run [helm-find-files](http://tuhdo.github.io/helm-intro.html#sec-6), an interactive version of `find-file` with more features.
+<kbd>C-h C-f </kbd>| Run [helm-apropos](http://tuhdo.github.io/helm-intro.html#sec-13), an interactive version of `apropos-command`.
+<kbd>C-h r</kbd>   | Run [helm-info-emacs](http://tuhdo.github.io/helm-intro.html#sec-14), an interactive version of `info-emacs-manual`.
+<kbd>C-h C-l </kbd>| Run `helm-locate-library` that can search for locations of any file loaded into Emacs.
+
+This key binding won't be activated in `shell-mode`:
+
+Key Binding        | Description
+-------------------|----------------------------------------------
+<kbd>M-l</kbd>     | Run `helm-comint-input-ring` that shows `shell` history using Helm interface.
+
+These key bindings won't be activated in `eshell-mode`:
+
+Key Binding        | Description
+-------------------|----------------------------------------------
+<kbd>M-l</kbd>     | Run `helm-eshell-history` that shows `eshell` history using Helm interface.
+
+You can use above key bindings by putting `(prelude-global-helm-global-mode +1)` right after `(require 'prelude-helm)`. If you enable
+these key bindings, you should not enable `prelude-ido`.
+
 #### Key-chords
 
 **Key-chords are available only when the `prelude-key-chord` module has been enabled.**
diff --git a/modules/prelude-helm.el b/modules/prelude-helm.el
index 2033def..3878331 100644
--- a/modules/prelude-helm.el
+++ b/modules/prelude-helm.el
@@ -1,6 +1,6 @@
 ;;; prelude-helm.el --- Helm setup
 ;;
-;; Copyright © 2011-2013 Bozhidar Batsov
+;; Copyright © 2011-2014 Bozhidar Batsov
 ;;
 ;; Author: Bozhidar Batsov <bozhidar@batsov.com>
 ;; URL: https://github.com/bbatsov/prelude
@@ -11,7 +11,7 @@
 
 ;;; Commentary:
 
-;; Some config for Helm.
+;; Some config for Helm that follows thiks guide: http://tuhdo.github.io/helm-intro.html
 
 ;;; License:
 
@@ -32,30 +32,110 @@
 
 ;;; Code:
 
-(prelude-require-packages '(helm helm-projectile))
+(prelude-require-packages '(helm helm-projectile helm-descbinds))
+
+(require 'helm)
+
+;; must set before helm-config,  otherwise helm use default
+;; prefix "C-x c", which is inconvenient because you can
+;; accidentially pressed "C-x C-c"
+(setq helm-command-prefix-key "C-c h")
+
+(require 'helm-config)
+(require 'helm-eshell)
+(require 'helm-files)
+(require 'helm-grep)
+
+(define-key helm-map (kbd "<tab>") 'helm-execute-persistent-action) ; rebihnd tab to do persistent action
+(define-key helm-map (kbd "C-i") 'helm-execute-persistent-action) ; make TAB works in terminal
+(define-key helm-map (kbd "C-z")  'helm-select-action) ; list actions using C-z
+
+(define-key helm-grep-mode-map (kbd "<return>")  'helm-grep-mode-jump-other-window)
+(define-key helm-grep-mode-map (kbd "n")  'helm-grep-mode-jump-other-window-forward)
+(define-key helm-grep-mode-map (kbd "p")  'helm-grep-mode-jump-other-window-backward)
+
+(setq
+ helm-google-suggest-use-curl-p t
+ helm-scroll-amount 4 ; scroll 4 lines other window using M-<next>/M-<prior>
+ helm-quick-update t ; do not display invisible candidates
+ helm-idle-delay 0.01 ; be idle for this many seconds, before updating in delayed sources.
+ helm-input-idle-delay 0.01 ; be idle for this many seconds, before updating candidate buffer
+ helm-ff-search-library-in-sexp t ; search for library in `require' and `declare-function' sexp.
+ helm-split-window-default-side 'other ;; open helm buffer in another window
+ helm-split-window-in-side-p t ;; open helm buffer inside current window, not occupy whole other window
+ helm-buffers-favorite-modes (append helm-buffers-favorite-modes
+                                     '(picture-mode artist-mode))
+ helm-candidate-number-limit 500 ; limit the number of displayed canidates
+ helm-M-x-requires-pattern 0    ; show all candidates when set to 0
+ helm-ff-file-name-history-use-recentf t
+ helm-move-to-line-cycle-in-source t ; move to end or beginning of source
+                                        ; when reaching top or bottom of source.
+ ido-use-virtual-buffers t             ; Needed in helm-buffers-list
+ helm-buffers-fuzzy-matching t          ; fuzzy matching buffer names when non-nil
+                                        ; useful in helm-mini that lists buffers
+ )
+
+(global-set-key (kbd "C-c h o") 'helm-occur)
+(global-set-key (kbd "C-c h g") 'helm-do-grep)
+(global-set-key (kbd "C-c h C-c w") 'helm-wikipedia-suggest)
+(global-set-key (kbd "C-c h x") 'helm-register)
+(global-set-key (kbd "C-c h SPC") 'helm-all-mark-rings)
+
+;;; Save current position to mark ring
+(add-hook 'helm-goto-line-before-hook 'helm-save-current-pos-to-mark-ring)
+
+(defvar prelude-global-helm-mode-map
+  (let ((map (make-sparse-keymap)))
+    (define-key map (kbd "M-x") 'helm-M-x)
+    (define-key map (kbd "M-y") 'helm-show-kill-ring)
+    (define-key map (kbd "C-x b") 'helm-mini)
+    (define-key map (kbd "C-x C-f") 'helm-find-files)
+    (define-key map (kbd "C-h C-f") 'helm-apropos)
+    (define-key map (kbd "C-h r") 'helm-info-emacs)
+    (define-key map (kbd "C-h C-l") 'helm-locate-library)
+    map)
+  "Keymap for Helm to replace standard Prelude's commands")
+
+(define-minor-mode prelude-global-helm-minor-mode
+  "Minor mode to replace Prelude default commands with \\{prelude-global-helm-map}"
+  :keymap prelude-global-helm-mode-map
+  (progn
+    ;; show minibuffer history with Helm
+    (define-key minibuffer-local-map (kbd "M-l") 'helm-minibuffer-history)
+    (define-key global-map [remap find-tag] 'helm-etags-select)
+    (define-key global-map [remap list-buffers] 'helm-mini)
+
+    ;; shell history.
+    (define-key shell-mode-map (kbd "M-l") 'helm-comint-input-ring)
+
+    ;; use helm to list eshell history
+    (add-hook 'eshell-mode-hook
+              #'(lambda ()
+                  (define-key eshell-mode-map (kbd "M-l")  'helm-eshell-history)))))
+
+(define-globalized-minor-mode prelude-global-helm-global-mode prelude-global-helm-minor-mode prelude-global-helm-global-mode-on)
+
+(defun prelude-global-helm-global-mode-on ()
+  "Turn on `prelude-global-helm-minor-mode'"
+  (prelude-global-helm-minor-mode +1)
+  )
+
+(defun prelude-global-helm-global-mode-off ()
+  "Turn off `prelude-global-helm-minor-mode'"
+  (prelude-global-helm-minor-mode -1))
+
+(helm-mode 1)
+
+;; PACKAGE: helm-projectile
 
-(require 'helm-misc)
 (require 'helm-projectile)
+(setq projectile-completion-system 'helm)
+
+(push "Press <C-c p h> to navigate a project in Helm." prelude-tips)
 
-(defun helm-prelude ()
-  "Preconfigured `helm'."
-  (interactive)
-  (condition-case nil
-      (if (projectile-project-root)
-          (helm-projectile)
-        ;; otherwise fallback to `helm-mini'
-        (helm-mini))
-    ;; fall back to helm mini if an error occurs (usually in `projectile-project-root')
-    (error (helm-mini))))
-
-(eval-after-load 'prelude-mode
-  '(progn
-     (define-key prelude-mode-map (kbd "C-c h") 'helm-prelude)
-     (easy-menu-add-item nil '("Tools" "Prelude")
-                         '("Navigation"
-                           ["Helm" helm-prelude]))))
-
-(push "Press <C-c h> to navigate a project in Helm." prelude-tips)
+;; PACKAGE: helm-descbinds
+(require 'helm-descbinds)
+(helm-descbinds-mode)
 
 (provide 'prelude-helm)
 
diff --git a/modules/prelude-python.el b/modules/prelude-python.el
index 1f7a44e..10ca704 100644
--- a/modules/prelude-python.el
+++ b/modules/prelude-python.el
@@ -45,8 +45,8 @@
              buffer-file-coding-system)))
     (if coding-system
         (symbol-name
-              (or (coding-system-get coding-system 'mime-charset)
-                  (coding-system-change-eol-conversion coding-system nil)))
+         (or (coding-system-get coding-system 'mime-charset)
+             (coding-system-change-eol-conversion coding-system nil)))
       "ascii-8bit")))
 
 (defun prelude-python--insert-coding-comment (encoding)
@@ -78,9 +78,12 @@
   "Defaults for Python programming."
   (subword-mode +1)
   (setq-local electric-layout-rules
-	      '((?: . (lambda ()
+              '((?: . (lambda ()
                         (if (python-info-statement-starts-block-p)
                             'after)))))
+  (when (fboundp #'python-imenu-create-flat-index)
+    (setq-local imenu-create-index-function
+                #'python-imenu-create-flat-index))
   (electric-layout-mode +1)
   (add-hook 'after-save-hook 'prelude-python-mode-set-encoding nil 'local))