diff --git a/README.md b/README.md
index 389db40..2bd25ce 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,69 @@
 # Ruby::Reports
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/ruby/reports`. To experiment with that code, run `bin/console` for an interactive prompt.
+This gem was written for report automation provided by DSL.
 
-TODO: Delete this and the text above, and describe your gem
+Main concept is following:
+- You have report class where you define attributes, column names and mapped to them
+  keys from source data
+- Report has ```query``` method. It defines what object will serve data querying from any source
+- (Optional) Report has ```formatter``` method. It defines what object will serve cell value formatting
+
+Example:
+```ruby
+  class MyNiceReport < Ruby::Reports::CsvReport
+    config(
+      source: :fetch_data,
+      expire_in: 15 * 60,
+      encoding: Ruby::Reports::CP1251,
+      directory: File.join('/home', 'my_home', 'nice_reports')
+    )
+
+    table do
+      column 'ID', :id
+      column 'User Name', :username
+      column 'Email', :email, formatter: :mail_to_link
+      column 'Last Seen', :last_seen_date, formatter: :date
+    end
+
+    def formatter
+      @formatter ||= Formatter.new
+    end
+
+    def query
+      @query ||= Query.new(self)
+    end
+
+    class Formatter
+      def mail_to_link(email)
+        "mailto:#{email}"
+      end
+
+      def date(date)
+        Date.parse(date).strftime('%d.%m.%Y')
+      end
+    end
+
+    class Query < Ruby::Reports::Services::QueryBuilder
+      def fetch_data
+        [
+          {id: 1, username: 'user#1', email: 'user1@reports.org', last_seen_date: '2015/06/06'},
+          {id: 2, username: 'user#2', email: 'user2@reports.org', last_seen_date: '2015/02/07'},
+          {id: 3, username: 'user#3', email: 'user3@reports.org', last_seen_date: '2015/08/13'}
+        ]
+      end
+    end
+  end
+
+  > report = MyNiceReport.build
+  # => #<MyNiceReport:0x00000002171a68 ...>
+  > report.ready?
+  # => true
+  > report.filename
+  # => '/home/my_home/nice_reports/asdvdsadvasdv.csv'
+  > IO.read(report.filename)
+  # => "ID;User Name;Email;Last Seen\r\n1;user#1;mailto:user1@reports.org;06.06.2015\r\n
+  # 2;user#2;mailto:user2@reports.org;07.02.2015\r\n3;user#3;mailto:user3@reports.org;13.08.2015\r\n"
+```
 
 ## Installation
 
@@ -32,8 +93,7 @@ To install this gem onto your local machine, run `bundle exec rake install`. To
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/ruby-reports.
-
+Bug reports and pull requests are welcome on GitHub at https://github.com/sclinede/ruby-reports.
 
 ## License
 
diff --git a/lib/ruby/reports/base_report.rb b/lib/ruby/reports/base_report.rb
index be5ebab..87d6f7d 100644
--- a/lib/ruby/reports/base_report.rb
+++ b/lib/ruby/reports/base_report.rb
@@ -101,6 +101,7 @@ def build(options = {})
 
       def initialize(*args)
         @args = args
+        assign_attributes
       end
 
       # Builds report synchronously
@@ -125,6 +126,12 @@ def formatter
 
       private
 
+      def assign_attributes
+        if args && (attrs_hash = args.first) && attrs_hash.is_a?(Hash)
+          attrs_hash.each { |name, value| instance_variable_set("@#{name}", value) }
+        end
+      end
+
       def query
         # descendant of QueryBuilder or SqlQuery with #take_batch(limit, offset) method defined
         # @query ||= Query.new(self)
diff --git a/lib/ruby/reports/services/data_iterator.rb b/lib/ruby/reports/services/data_iterator.rb
index 2118c2c..2e672ba 100644
--- a/lib/ruby/reports/services/data_iterator.rb
+++ b/lib/ruby/reports/services/data_iterator.rb
@@ -7,7 +7,7 @@ class DataIterator
           @custom_source = query.send(config.source) if config.source
         end
 
-        def iterate_data_source
+        def iterate_custom_source
           custom_source.each do |row|
             yield row
           end
@@ -16,7 +16,7 @@ def iterate_data_source
         #
         # Returns Nothing
         def data_each(force = false, &block)
-          return iterate_data_source(&block) if custom_source
+          return iterate_custom_source(&block) if custom_source
 
           batch_offset = 0
 
@@ -34,7 +34,6 @@ def data_size
                            custom_source.size
                          else
                            query.request_count
-                           # expects Integer, like connection.execute(count_sql)[0]['count'].to_i
                          end
         end
       end
diff --git a/lib/ruby/reports/services/filename_generator.rb b/lib/ruby/reports/services/filename_generator.rb
index b7c74ed..28e5d9b 100644
--- a/lib/ruby/reports/services/filename_generator.rb
+++ b/lib/ruby/reports/services/filename_generator.rb
@@ -1,3 +1,6 @@
+require 'digest'
+require 'json'
+
 # coding: utf-8
 module Ruby
   module Reports
diff --git a/lib/ruby/reports/services/table_builder.rb b/lib/ruby/reports/services/table_builder.rb
index 785f044..41185fc 100644
--- a/lib/ruby/reports/services/table_builder.rb
+++ b/lib/ruby/reports/services/table_builder.rb
@@ -2,7 +2,7 @@
 require 'iron/dsl'
 
 # coding: utf-8
-# Resque namespace
+# Ruby namespace
 module Ruby
   # Resque::Reports namespace
   module Reports
@@ -15,11 +15,7 @@ class TableBuilder
           init_table
         end
 
-        def encoded_string(obj)
-          obj.to_s.encode(config.encoding, invalid: :replace, undef: :replace)
-        end
-
-        def column(name, value, options = {})
+        def column(name, value = nil, options = {})
           if (skip_if = options.delete(:skip_if))
             if skip_if.is_a?(Symbol)
               return if report.send(skip_if)
@@ -28,7 +24,27 @@ def column(name, value, options = {})
             end
           end
 
-          building_header ? add_column_header(name) : add_column_cell(value, options)
+          building_header ? add_header_cell(name) : add_row_cell(value, options)
+        end
+
+        def build_row(row)
+          @row = row.is_a?(Hash) ? row.rekey! : row
+          row = DslProxy.exec(self, @row, &table_block)
+          cleanup_row
+          row
+        end
+
+        def build_header
+          @building_header = true
+          header = DslProxy.exec(self, Dummy.new, &table_block)
+          @building_header = false
+          header
+        end
+
+        private
+
+        def encoded_string(obj)
+          obj.to_s.encode(config.encoding, invalid: :replace, undef: :replace)
         end
 
         def init_table
@@ -40,12 +56,12 @@ def cleanup_row
           @table_row = []
         end
 
-        def add_column_header(column_name)
+        def add_header_cell(column_name)
           @table_header << encoded_string(column_name)
         end
 
-        def add_column_cell(column_value, options = {})
-          column_value = @row_object[column_value] if column_value.is_a? Symbol
+        def add_row_cell(column_value, options = {})
+          column_value = @row[column_value] if column_value.is_a? Symbol
 
           if (formatter_name = options[:formatter])
             column_value = report.formatter.send(formatter_name, column_value)
@@ -54,20 +70,6 @@ def add_column_cell(column_value, options = {})
           @table_row << encoded_string(column_value)
         end
 
-        def build_row(row_object)
-          @row_object = row_object.is_a?(Hash) ? row_object.rekey! : row_object
-          row = DslProxy.exec(self, @row_object, &table_block)
-          cleanup_row
-          row
-        end
-
-        def build_header
-          @building_header = true
-          header = DslProxy.exec(self, Dummy.new, &table_block)
-          @building_header = false
-          header
-        end
-
         class Dummy
           def method_missing(method, *arguments, &block)
             nil
diff --git a/lib/ruby/reports/version.rb b/lib/ruby/reports/version.rb
index 32df527..673beb4 100644
--- a/lib/ruby/reports/version.rb
+++ b/lib/ruby/reports/version.rb
@@ -1,7 +1,7 @@
 # coding: utf-8
 module Ruby
   module Reports
-    VERSION = '0.0.1'
+    VERSION = '0.0.2'
   end
 end
 
diff --git a/ruby-reports.gemspec b/ruby-reports.gemspec
index a8714bd..fe7c9b9 100644
--- a/ruby-reports.gemspec
+++ b/ruby-reports.gemspec
@@ -19,14 +19,13 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ['lib']
 
-  spec.add_runtime_dependency 'rake'
   spec.add_runtime_dependency 'iron-dsl'
   spec.add_runtime_dependency 'attr_extras'
   spec.add_runtime_dependency 'facets'
 
+  spec.add_development_dependency 'rake'
   spec.add_development_dependency 'pry'
   spec.add_development_dependency 'pry-debugger'
-  spec.add_development_dependency 'rake'
   spec.add_development_dependency 'rspec', '>= 2.14.0'
   spec.add_development_dependency 'simplecov'
   spec.add_development_dependency 'timecop', '~> 0.7.1'