diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..35fd14cb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.DS_Store/
+coverage/
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 00000000..82e5a661
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,7 @@
+require 'rake/testtask'
+
+Rake::TestTask.new do |t|
+   t.test_files = FileList['specs/*_spec.rb']
+ end
+
+task default: :test
diff --git a/far_mar.rb b/far_mar.rb
new file mode 100644
index 00000000..d67786d0
--- /dev/null
+++ b/far_mar.rb
@@ -0,0 +1,10 @@
+require 'csv'
+require 'date'
+require 'time'
+
+module FarMar; end
+
+require_relative 'lib/market'
+require_relative 'lib/product'
+require_relative 'lib/sale'
+require_relative'lib/vendor'
diff --git a/lib/market.rb b/lib/market.rb
new file mode 100644
index 00000000..1b79a93f
--- /dev/null
+++ b/lib/market.rb
@@ -0,0 +1,44 @@
+module FarMar
+  class Market
+    attr_reader :id, :name, :address, :city, :county, :state, :zip
+    attr_accessor :list_of_markets
+
+    def initialize(id, name, address, city, county, state, zip)
+      @id = id
+      @name = name
+      @address = address
+      @city = city
+      @county = county
+      @state = state
+      @zip = zip
+    end
+
+    def self.all
+      list_of_markets = []
+      CSV.read("/Users/YNaka/Ada/project_forks/FarMar/support/markets.csv", "r").each do |line|
+        list_of_markets << self.new(line[0].to_i, line[1], line[2], line[3], line[4], line[5], line[6])
+      end
+      list_of_markets
+    end
+
+    def self.find(market_id)
+      Market.all.each do |m|
+        if market_id == m.id
+          return m
+        end
+      end
+      return "That is not an existing market ID"
+    end
+
+    def vendors
+      this_markets_vendors = []
+      FarMar::Vendor.all.each do |v|
+        if @id == v.market_id
+           this_markets_vendors << v.name
+        end
+      end
+      return this_markets_vendors
+    end
+
+  end
+end
diff --git a/lib/product.rb b/lib/product.rb
new file mode 100644
index 00000000..b80aae62
--- /dev/null
+++ b/lib/product.rb
@@ -0,0 +1,62 @@
+module FarMar
+  class Product
+    attr_reader :id, :name, :vendor_id
+
+    def initialize(id, name, vendor_id)
+      @id = id
+      @name = name
+      @vendor_id = vendor_id
+    end
+
+    def self.all
+      list_of_products = []
+      CSV.read("/Users/YNaka/Ada/project_forks/FarMar/support/products.csv", "r").each do |line|
+        list_of_products << self.new(line[0].to_i, line[1], line[2].to_i)
+      end
+      list_of_products
+    end
+
+    def self.find(product_id)
+      Product.all.each do |p|
+        if product_id == p.id
+          return p
+        end
+      end
+      return "That is not an existing product ID"
+    end
+
+    def self.by_vendor(vendor_id)
+      products_for_this_vendor = []
+      Product.all.each do |p|
+        if vendor_id == p.vendor_id
+          products_for_this_vendor << p.name
+        end
+      end
+      return products_for_this_vendor
+    end
+
+    def vendor
+      FarMar::Vendor.all.each do |v|
+        if @vendor_id == v.id
+          return v
+        end
+      end
+    end
+
+    def sales
+      @this_products_sales = []
+      FarMar::Sale.all.each do |s|
+        if @id == s.product_id
+          @this_products_sales << s.id
+        end
+      end
+      return @this_products_sales
+    end
+
+    def number_of_sales
+      sales
+      return @this_products_sales.length
+    end
+
+  end
+end
diff --git a/lib/sale.rb b/lib/sale.rb
new file mode 100644
index 00000000..6ddc5567
--- /dev/null
+++ b/lib/sale.rb
@@ -0,0 +1,59 @@
+module FarMar
+  class Sale
+    attr_reader :id, :amount, :purchase_time, :vendor_id, :product_id
+
+    def initialize(id, amount, purchase_time, vendor_id, product_id)
+      @id = id
+      @amount = amount
+      @purchase_time = purchase_time
+      @vendor_id = vendor_id
+      @product_id = product_id
+    end
+
+    def self.all
+      list_of_sales = []
+      CSV.read("/Users/YNaka/Ada/project_forks/FarMar/support/sales.csv", "r").each do |line|
+        list_of_sales << self.new(line[0].to_i, line[1].to_i, DateTime.parse(line[2]), line[3].to_i, line[4].to_i)
+      end
+      list_of_sales
+    end
+
+    def self.find(sale_id)
+      Sale.all.each do |s|
+        if sale_id == s.id
+          return s
+        end
+      end
+      return "That does not match any existing sale IDs"
+    end
+
+
+    def self.between(begin_time, end_time)
+      begin_time = DateTime.parse(begin_time)
+      end_time = DateTime.parse(end_time)
+      sales_between_these_times = []
+      Sale.all.each do |s|
+        if (s.purchase_time >= begin_time && s.purchase_time <= end_time)
+          sales_between_these_times << s
+        end
+      end
+      return sales_between_these_times
+    end
+
+    def vendor
+      FarMar::Vendor.all.each do |v|
+        if @vendor_id == v.id
+          return v
+        end
+      end
+    end
+
+    def product
+      FarMar::Product.all.each do |p|
+        if @product_id == p.id
+          return p
+        end
+      end
+    end
+  end
+end
diff --git a/lib/vendor.rb b/lib/vendor.rb
new file mode 100644
index 00000000..13fdfcb5
--- /dev/null
+++ b/lib/vendor.rb
@@ -0,0 +1,74 @@
+module FarMar
+  class Vendor
+    attr_reader :id, :name, :num_employees, :market_id
+
+    def initialize(id, name, num_employees, market_id)
+      @id = id
+      @name = name
+      @num_employees = num_employees
+      @market_id = market_id
+    end
+
+    def self.all
+      list_of_vendors = []
+      CSV.read("/Users/YNaka/Ada/project_forks/FarMar/support/vendors.csv", "r").each do |line|
+        list_of_vendors << self.new(line[0].to_i, line[1], line[2].to_i, line[3].to_i)
+      end
+      list_of_vendors
+    end
+
+    def self.find(vendor_id)
+      Vendor.all.each do |v|
+        if vendor_id == v.id
+          return v
+        end
+      end
+      return "That is not an existing vendor ID"
+    end
+
+    def self.by_market(market_id)
+      vendors_at_this_market = []
+      Vendor.all.each do |v|
+        if market_id == v.market_id
+          vendors_at_this_market << v.name
+        end
+      end
+      return vendors_at_this_market
+    end
+
+    def market
+      FarMar::Market.all.each do |m|
+        if @market_id == m.id
+          return m
+        end
+      end
+    end
+
+    def products
+      this_vendors_products = []
+      FarMar::Product.all.each do |p|
+        if @id == p.vendor_id
+          this_vendors_products << p.name
+        end
+      end
+      return this_vendors_products
+    end
+
+    def sales
+      @this_vendors_sales = []
+      FarMar::Sale.all.each do |s|
+        if @id == s.vendor_id
+          @this_vendors_sales << s.amount
+        end
+      end
+      return @this_vendors_sales
+    end
+
+    def revenue
+      sales
+      r = @this_vendors_sales.reduce(:+).to_f
+      r = r/100
+      return "This vendor's total revenue is $#{r} "
+    end
+  end
+end
diff --git a/specs/market_spec.rb b/specs/market_spec.rb
new file mode 100644
index 00000000..5cd88ef3
--- /dev/null
+++ b/specs/market_spec.rb
@@ -0,0 +1,36 @@
+require_relative 'spec_helper'
+
+describe FarMar::Market do
+  describe "#initialize" do
+
+    it "can create a new instance of Market" do
+      FarMar::Market.new(1, "People's Co-op Farmers Market", "30th and Burnside", "Portland", "Multnomah", "Oregon", "Oregon").must_be_instance_of(FarMar::Market)
+    end
+
+  end
+
+  describe "all" do
+    it "returns all instances of Market" do
+      FarMar::Market.all.length.must_equal(500)
+    end
+  end
+
+  describe "find" do
+    it "returns the instance of Market whose market id matches the argument's market id" do
+      this_market = FarMar::Market.find(20)
+      this_market.name.must_equal("Scottdale Farmers Market")
+    end
+
+    # it "returns that market id does not exist if argument's market id does not match any existing market ids" do
+    #
+    # end
+
+  end
+
+  describe "#vendors" do
+    it "returns collection of vendors associated with that instance of Market" do
+      market1 = FarMar::Market.find(3)
+      market1.vendors.must_equal(["Kertzmann LLC", "Donnelly-Quigley", "Windler Inc"])
+    end
+  end
+end
diff --git a/specs/product_spec.rb b/specs/product_spec.rb
new file mode 100644
index 00000000..33192623
--- /dev/null
+++ b/specs/product_spec.rb
@@ -0,0 +1,51 @@
+require_relative 'spec_helper'
+
+describe FarMar::Product do
+
+  describe "#initialize" do
+    it "can create a new instance of Product" do
+      FarMar::Product.new(8090, "Sour Beets",2657).must_be_instance_of(FarMar::Product)
+    end
+  end
+
+  describe "all" do
+    it "returns all instances of Product" do
+    FarMar::Product.all.length.must_equal(8193)
+    end
+  end
+
+  describe "find" do
+    it "returns the instance of Product whose product id matches the argument's product id" do
+      this_product = FarMar::Product.find(8162)
+      this_product.name.must_equal("Long Chicken")
+    end
+  end
+
+  describe "by_vendor" do
+    it "returns all names of Product instances associated with the argument's vendor id" do
+      FarMar::Product.by_vendor(10).must_equal(["Calm Carrots", "Fierce Beef", "Helpless Bread", "Yummy Bread", "Broken Beets"])
+    end
+  end
+
+  describe "#vendor" do
+    it "returns the instance of Vendor associated with that instance of Product" do
+      this_product = FarMar::Product.find(250)
+      this_product.vendor.id.must_be_same_as(FarMar::Vendor.find(78).id)
+    end
+  end
+
+  describe "#sales" do
+    it "returns the sale ids of all instances of Sale associated with that instance of Product" do
+      my_product = FarMar::Product.find(378)
+      my_product.sales.must_equal([560, 562, 564, 566, 568])
+    end
+  end
+
+  describe "#number_of_sales" do
+    it "returns the total number of instances of Sale associated with that instance of Product" do
+      product = FarMar::Product.find(450)
+      product.number_of_sales.must_equal(2)
+    end
+  end
+
+end
diff --git a/specs/sale_spec.rb b/specs/sale_spec.rb
new file mode 100644
index 00000000..401f67e6
--- /dev/null
+++ b/specs/sale_spec.rb
@@ -0,0 +1,43 @@
+require_relative 'spec_helper'
+
+describe FarMar::Sale do
+  describe "#initialize" do
+
+    it "can create a new instance of Sale" do
+      FarMar::Sale.new(11976, 6028, "2013-11-08T08:08:48-08:00", 2684, 8170).must_be_instance_of(FarMar::Sale)
+    end
+  end
+
+  describe "all" do
+    it "returns all instances of Sale" do
+      FarMar::Sale.all.length.must_equal(12798)
+    end
+  end
+
+  describe "find" do
+    it "returns the instance of Sale whose sale id matches the argument sale id" do
+      this_sale = FarMar::Sale.find(35)
+      this_sale.amount.must_equal(8375)
+    end
+  end
+
+  describe "between" do
+    it "returns all instances of Sale within the DateTimes given in the argument" do
+      FarMar::Sale.between("2013-11-10 04:30:00", "2013-11-10 05:00:00").length.must_equal(37)
+    end
+  end
+
+  describe "#vendor" do
+    it "returns the instance of Vendor associated with that instance of Sale" do
+      s = FarMar::Sale.find(250)
+      s.vendor.id.must_equal(52)
+    end
+  end
+
+  describe "#product" do
+    it "returns the instance of Product associated with that instance of Sale" do
+      this_sale = FarMar::Sale.find(121)
+      this_sale.product.id.must_equal(70)
+    end
+  end
+end
diff --git a/specs/spec_helper.rb b/specs/spec_helper.rb
new file mode 100644
index 00000000..1d9d0e3d
--- /dev/null
+++ b/specs/spec_helper.rb
@@ -0,0 +1,13 @@
+require 'simplecov'
+SimpleCov.start
+
+
+require 'minitest'
+require 'minitest/spec'
+require "minitest/autorun"
+require "minitest/reporters"
+require 'minitest/pride'
+#These are all the things about mini test that we are using
+Minitest::Reporters.use! Minitest::Reporters::SpecReporter.new
+
+require_relative '../far_mar'
diff --git a/specs/vendor_spec.rb b/specs/vendor_spec.rb
new file mode 100644
index 00000000..ff472238
--- /dev/null
+++ b/specs/vendor_spec.rb
@@ -0,0 +1,58 @@
+require_relative 'spec_helper'
+
+describe FarMar::Vendor do
+  describe "#initialize" do
+
+    it "can create a new instance of Vendor" do
+      FarMar::Vendor.new(1584, "Quitzon-Jacobi", 3, 296).must_be_instance_of(FarMar::Vendor)
+    end
+
+  end
+
+  describe "all" do
+    it "returns all instances of Vendor" do
+      FarMar::Vendor.all.length.must_equal(2690)
+    end
+  end
+
+  describe "find" do
+    it "returns the instance of Vendor whose vendor id matches the argument's vendor id" do
+      this_vendor = FarMar::Vendor.find(2599)
+      this_vendor.name.must_equal("Mills and Sons")
+    end
+  end
+
+  describe "by_market" do
+    it "returns all names of Vendor instances associated with the argument's market id" do
+      FarMar::Vendor.by_market(4).must_equal(["Grady, Hudson and Olson", "Stracke Group", "Hyatt-King", "Homenick-Kuhn"])
+    end
+  end
+
+  describe "#market" do
+    it "returns the instance of Market associated with that instance of Vendor" do
+      vendor = FarMar::Vendor.find(5)
+      vendor.market.id.must_be_same_as(FarMar::Market.find(1).id)
+    end
+  end
+
+  describe "#products" do
+    it "returns all instances of Product associated with that instance of Vendor" do
+      vendor1 = FarMar::Vendor.find(100)
+      vendor1.products.must_equal(["Combative Carrots", "Fair Fruit", "Cool Fish", "Bad Pretzel", "Hurt Burrito"])
+    end
+  end
+
+  describe "#sales"do
+    it "returns all instances of Sale associated with that instance of Vendor" do
+      this_vendor = FarMar::Vendor.find(100)
+      this_vendor.sales.must_equal([1966, 6470, 8721])
+    end
+  end
+
+  describe "#revenue" do
+    it "returns the sum of all amounts of Sale instances associated with that instance of Vendor" do
+      dwight = FarMar::Vendor.find(10)
+      dwight.revenue.must_equal("This vendor's total revenue is $326.28 ")
+    end
+  end
+end