diff --git a/defaults.lua b/defaults.lua
index a42497bc5..9193a2a57 100644
--- a/defaults.lua
+++ b/defaults.lua
@@ -139,6 +139,23 @@ DDICT_FONT_SIZE = 20
 -- e.g. 2 changes the sensitivity by 1/2, 3 by 1/3 etc.
 FRONTLIGHT_SENSITIVITY_DECREASE = 2
 
+-- Set a path to a folder that is filled by Calibre (must contain the file metadata.calibre)
+-- e.g.
+-- /mnt/sd/.hidden for Kobo with files in ".hidden" on the SD card
+-- /mnt/onboard/MyPath for Kobo with files in "MyPath" on the device itself
+-- /mnt/us/documents/ for Kindle files in folder "documents"
+LIBRARY_PATH = nil
+
+-- Search parameters
+SEARCH_CASESENSITIVE = false
+
+SEARCH_AUTHORS = true
+SEARCH_TITLE = true
+SEARCH_TAGS = true
+SEARCH_SERIES = true
+SEARCH_PATH = true
+
+
 -- ####################################################################
 -- following features are not supported right now
 -- ####################################################################
diff --git a/frontend/apps/filemanager/filemanagermenu.lua b/frontend/apps/filemanager/filemanagermenu.lua
index c0044892e..46d9f232e 100644
--- a/frontend/apps/filemanager/filemanagermenu.lua
+++ b/frontend/apps/filemanager/filemanagermenu.lua
@@ -12,6 +12,7 @@ local Screen = require("ui/screen")
 local Language = require("ui/language")
 local _ = require("gettext")
 local ReaderFrontLight = require("apps/reader/modules/readerfrontlight")
+local Search = require("apps/filemanager/filemanagersearch")
 
 local FileManagerMenu = InputContainer:extend{
     tab_item_table = nil,
@@ -122,6 +123,12 @@ function FileManagerMenu:setUpdateItemTable()
             })
         end
     })
+    table.insert(self.tab_item_table.info, {
+        text = _("Search Books (experimental)"),
+        callback = function()
+            Search:init()
+        end
+    })
 end
 
 function FileManagerMenu:onShowMenu()
diff --git a/frontend/apps/filemanager/filemanagersearch.lua b/frontend/apps/filemanager/filemanagersearch.lua
new file mode 100644
index 000000000..62b15a3d3
--- /dev/null
+++ b/frontend/apps/filemanager/filemanagersearch.lua
@@ -0,0 +1,235 @@
+local InfoMessage = require("ui/widget/infomessage")
+local UIManager = require("ui/uimanager")
+local _ = require("gettext")
+local InputContainer = require("ui/widget/container/inputcontainer")
+local InputDialog = require("ui/widget/inputdialog")
+local CenterContainer = require("ui/widget/container/centercontainer")
+local Screen = require("ui/screen")
+local Menu = require("ui/widget/menu")
+
+local Search = InputContainer:new{
+    calibrefile=nil,
+    search_dialog=nil,
+    authors = 1,
+    title = 2,
+    path = 3,
+    tags = 4,
+    series = 5,
+    count = 0,
+    data = {},
+    results = {},
+}
+
+function Search:init()
+    self.data = {}
+    self.results = {}
+
+    -- check if we find the calibre file
+    if LIBRARY_PATH == nil then 
+		    UIManager:show(InfoMessage:new{text = _("LIBRARY_PATH in DEFAULTS.LUA is not set!"),})
+    else
+        if string.sub(LIBRARY_PATH,string.len(LIBRARY_PATH)) ~= "/" then
+            LIBRARY_PATH = LIBRARY_PATH .. "/"
+        end
+        if io.open(LIBRARY_PATH .. "metadata.calibre","r") == nil then
+            if io.open(LIBRARY_PATH .. ".metadata.calibre","r") == nil then
+		            UIManager:show(InfoMessage:new{text = _(LIBRARY_PATH .. "metadata.calibre not found!")})
+		        else
+                self.calibrefile = LIBRARY_PATH .. ".metadata.calibre"
+            end
+        else
+            self.calibrefile = LIBRARY_PATH .. "metadata.calibre"
+        end
+
+        if not (SEARCH_AUTHORS or SEARCH_TITLE or SEARCH_PATH or SEARCH_SERIES or SEARCH_TAGS) then
+            self.calibrefile = nil
+            UIManager:show(InfoMessage:new{text = _("You must specify at least one field to search at! (SEARCH_XXX = true in defaults.lua)")})
+        end
+    end
+    
+    if self.calibrefile ~= nil then
+        local dummy = ""
+        if SEARCH_CASESENSITIVE then
+            dummy = "case sensitive)"
+        else
+            dummy = "case insensitive)"
+        end
+        self.search_dialog = InputDialog:new{
+            title = _("Search Books (" .. dummy),
+            buttons = {
+                {
+                    {
+                        text = _("Find"),
+                        enabled = true,
+                        callback = function()
+                            self.search_value=self.search_dialog:getInputText()
+                            self:close()
+                        end,
+                    },
+                },
+            },
+            width = Screen:getWidth() * 0.8,
+            height = Screen:getHeight() * 0.2,
+        }
+        self.search_dialog:onShowKeyboard()
+        UIManager:show(self.search_dialog)
+    end
+end
+
+function Search:close()
+    self.search_dialog:onClose()
+    UIManager:close(self.search_dialog)
+    if string.len(self.search_value) > 0 then
+        self:find()
+    end
+end
+
+function Search:find()
+    local f = io.open(self.calibrefile)
+    local line = f:read()
+    local i = 1
+    local upsearch
+    local dummy
+
+    -- removes leading and closing characters and converts hex-unicodes
+    local ReplaceHexChars = function(s,n)
+        local l=string.len(s)
+
+        if string.sub(s,l,l) == "\"" then
+            s=string.sub(s,n,string.len(s)-1)
+        else
+            s=string.sub(s,n,string.len(s)-3)
+        end
+
+-- todo: identify \uXXXX values and enter. Better solution: Find a better way how to replace hex-unicodes with \XXX\XXX constructs
+--        s=string.gsub(s,"\\","\195\160") -- à
+--        s=string.gsub(s,"\\","\195\178") -- ò
+--        s=string.gsub(s,"\\","\195\168") -- è
+--        s=string.gsub(s,"\\","\195\172") -- ì
+--        s=string.gsub(s,"\\","\195\185") -- ù
+--        s=string.gsub(s,"\\","\195\161") -- á
+--        s=string.gsub(s,"\\","\195\179") -- ó
+--        s=string.gsub(s,"\\","\195\169") -- é
+--        s=string.gsub(s,"\\","\195\173") -- í
+--        s=string.gsub(s,"\\","\195\186") -- ú
+--        s=string.gsub(s,"\\","\195\162") -- â
+--        s=string.gsub(s,"\\","\195\180") -- ô
+--        s=string.gsub(s,"\\","\195\170") -- ê
+--        s=string.gsub(s,"\\","\195\174") -- î
+--        s=string.gsub(s,"\\","\195\187") -- û
+--        s=string.gsub(s,"\\","\195\163") -- ã
+--        s=string.gsub(s,"\\","\195\181") -- õ
+--        s=string.gsub(s,"\\","\195\171") -- ë
+--        s=string.gsub(s,"\\","\195\175") -- ï
+--        s=string.gsub(s,"\\","\195\166") -- æ
+--        s=string.gsub(s,"\\","\195\184 ") -- ø
+--        s=string.gsub(s,"\\","\195\167") -- ç
+--        s=string.gsub(s,"\\","\195\177") -- ñ
+        
+        s=string.gsub(s,"\\u00c4","\195\132") -- Ä
+        s=string.gsub(s,"\\u00d6","\195\150") -- Ö
+        s=string.gsub(s,"\\u00dc","\195\156") -- Ü
+
+        s=string.gsub(s,"\\u00e4","\195\164") -- ä
+        s=string.gsub(s,"\\u00fc","\195\188") -- ü
+        s=string.gsub(s,"\\u00f6","\195\182") -- ö
+
+        s=string.gsub(s,"\\u00df","\195\159") -- ß
+        s=string.gsub(s,"\\u2019","'") -- '
+
+        return s
+    end
+
+    -- ready entries with multiple lines from calibre
+    local ReadMultipleLines = function(s)
+        self.data[i][s]=""
+        while line ~= "    ], " do
+            line = f:read()
+            if line ~= "    ], " then
+                self.data[i][s]=self.data[i][s] .. "," .. ReplaceHexChars(line,8)
+            end
+        end
+        self.data[i][s] = string.sub(self.data[i][s],2)
+    end
+
+
+    if SEARCH_CASESENSITIVE then
+        upsearch = self.search_value
+    else
+        upsearch = string.upper(self.search_value)
+    end
+    
+    self.data[i] = {"","","","",""}
+    while line do
+        if line == "  }, " or line == "  }" then
+            -- new calibre data set
+
+            dummy = ""
+            if SEARCH_AUTHORS then dummy = dummy .. self.data[i][self.authors] end
+            if SEARCH_TITLE then dummy = dummy .. self.data[i][self.title] end
+            if SEARCH_PATH then dummy = dummy .. self.data[i][self.path] end
+            if SEARCH_SERIES then dummy = dummy .. self.data[i][self.series] end
+            if SEARCH_TAGS then dummy = dummy .. self.data[i][self.tags] end
+            if not SEARCH_CASESENSITIVE then dummy = string.upper(dummy) end
+
+            if string.find(dummy,upsearch) then
+                i = i + 1
+                self.data[i] = {"","","","",""}
+            end
+
+        elseif line == "    \"authors\": [" then -- AUTHORS
+            ReadMultipleLines(self.authors)
+        elseif line == "    \"tags\": [" then -- TAGS
+            ReadMultipleLines(self.tags)
+		    elseif string.sub(line,1,11) == "    \"title\"" then -- TITLE
+    				self.data[i][self.title] = ReplaceHexChars(line,15)
+		    elseif string.sub(line,1,11) == "    \"lpath\"" then -- LPATH
+    				self.data[i][self.path] = string.sub(line,15,string.len(line)-3)
+		    elseif string.sub(line,1,12) == "    \"series\"" and line ~= "    \"series\": null, " then -- SERIES
+    				self.data[i][self.series] = ReplaceHexChars(line,16)
+	      end
+	      line = f:read()
+    end
+    i = i - 1
+    if i > 0 then
+        self.count = i
+        self:showresults()
+    else
+        UIManager:show(InfoMessage:new{text = _("No match for " .. self.search_value)})
+    end
+end
+
+function Search:showresults()
+    local menu_container = CenterContainer:new{
+        dimen = Screen:getSize(),
+    }
+    self.search_menu = Menu:new{
+        width = Screen:getWidth()-50,
+        height = Screen:getHeight()-50,
+        show_parent = menu_container,
+        _manager = self,
+    }
+    table.insert(menu_container, self.search_menu)
+    self.search_menu.close_callback = function()
+        UIManager:close(menu_container)
+    end
+
+    local i = 1
+    while i <= self.count do
+        local book = LIBRARY_PATH .. self.data[i][self.path]
+
+        table.insert(self.results, {
+           text = self.data[i][self.authors] .. ": " .. self.data[i][self.title],
+           callback = function()
+              if book then
+                  showReaderUI(book)
+              end
+           end
+        })
+        i = i + 1
+    end
+    self.search_menu:swithItemTable("Search Results", self.results)
+    UIManager:show(menu_container)
+end
+
+return Search