diff --git a/lib/freeagent.rb b/lib/freeagent.rb
index 55963e7..f477117 100644
--- a/lib/freeagent.rb
+++ b/lib/freeagent.rb
@@ -2,12 +2,13 @@ module FreeAgent
   require_relative 'freeagent/client'
   require_relative 'freeagent/errors'  
 
+  require_relative 'freeagent/collection'
   require_relative 'freeagent/resource'
   require_relative 'freeagent/user'
   require_relative 'freeagent/company'
   require_relative 'freeagent/timeline_item'
   require_relative 'freeagent/attachment'
-
+  require_relative 'freeagent/category'
   require_relative 'freeagent/contact'
   require_relative 'freeagent/project'
   require_relative 'freeagent/task'
@@ -19,6 +20,8 @@ module FreeAgent
   require_relative 'freeagent/estimate'
   require_relative 'freeagent/expense'
   require_relative 'freeagent/bank_transaction'
+  require_relative 'freeagent/bank_transaction_explanation'
+
   class << self
     attr_accessor :environment
     attr_accessor :debug
diff --git a/lib/freeagent/bank_transaction_explanation.rb b/lib/freeagent/bank_transaction_explanation.rb
new file mode 100644
index 0000000..0ee0864
--- /dev/null
+++ b/lib/freeagent/bank_transaction_explanation.rb
@@ -0,0 +1,17 @@
+module FreeAgent
+  class BankTransactionExplanation < Resource
+    resource :bank_transaction_explanation
+
+    resource_methods :default
+    attr_accessor :bank_account, :bank_transaction, :manual_sales_tax_amount, :sales_tax_rate, :description,
+      :gross_value, :foreign_currency_value, :rebill_type, :rebill_factor, :category, :paid_invoice,
+      :paid_bill, :paid_user, :transfer_bank_account, :asset_life_years, :attachment
+
+    date_accessor :dated_on
+
+    def self.find_all_by_bank_account(bank_account, options = {})
+      options.merge!(:bank_account => bank_account)
+      BankTransactionExplanation.filter(options)
+    end
+  end
+end
diff --git a/lib/freeagent/category.rb b/lib/freeagent/category.rb
new file mode 100644
index 0000000..19689be
--- /dev/null
+++ b/lib/freeagent/category.rb
@@ -0,0 +1,23 @@
+module FreeAgent
+  class Category < Resource
+    resource :category
+    endpoint[:plural] = :categories
+
+    resource_methods :find
+
+    attr_accessor :url, :description, :nominal_code, :allowable_for_tax, :tax_reporting_name, :auto_sales_tax_rate
+
+    def self.all
+      response = FreeAgent.client.get("#{endpoint[:plural]}")
+      response.values.flatten.collect { |r| self.new(r) }
+    end
+
+    def self.find(id)
+      response = FreeAgent.client.get("#{endpoint[:plural]}/#{id}")
+      self.new(response.values.first)
+    rescue FreeAgent::ApiError => error
+      raise error if FreeAgent.debug
+      nil
+    end
+  end
+end
diff --git a/lib/freeagent/client.rb b/lib/freeagent/client.rb
index 05e2291..d074db6 100644
--- a/lib/freeagent/client.rb
+++ b/lib/freeagent/client.rb
@@ -59,21 +59,31 @@ def access_token=(token)
     end
 
     def get(path, params={})
-      request(:get, "#{Client.site}#{path}", :params => params).parsed
+      parse(request(:get, "#{Client.site}#{path}", :params => params))
     end
 
     def post(path, data={})
-      request(:post, "#{Client.site}#{path}", :data => data).parsed
+      parse(request(:post, "#{Client.site}#{path}", :data => data))
     end
 
     def put(path, data={})
-      request(:put, "#{Client.site}#{path}", :data => data).parsed
+      parse(request(:put, "#{Client.site}#{path}", :data => data))
     end
 
     def delete(path, data={})
-      request(:delete, "#{Client.site}#{path}", :data => data).parsed
+      parse(request(:delete, "#{Client.site}#{path}", :data => data))
     end
 
+    def parse(request)
+      request.parsed.tap do |hash|
+        if link_header = request.headers['Link']
+          link_header.scan(/<(https:.*?)>; rel='(prev|next|first|last)'/).each do |(url, rel)|
+            hash[rel] = url
+          end
+        end
+      end
+    end
+    
   private
 
     def request(method, path, options = {})
diff --git a/lib/freeagent/collection.rb b/lib/freeagent/collection.rb
new file mode 100644
index 0000000..1f8eed6
--- /dev/null
+++ b/lib/freeagent/collection.rb
@@ -0,0 +1,49 @@
+module FreeAgent
+  class Collection < Array
+    def initialize(response, resource)
+      super(response[resource.endpoint[:plural]].collect { |r| resource.new(r) })
+      @resource = resource
+      @next_page_url = response['next']
+      @prev_page_url = response['prev']
+      @first_page_url = response['first']
+      @last_page_url = response['last']
+    end
+
+    def next_page?
+      @next_page_url
+    end
+
+    def prev_page?
+      @prev_page_url
+    end
+
+    def first_page?
+      @first_page_url
+    end
+
+    def last_page?
+      @last_page_url
+    end
+
+    def next_page
+      fetch_page(@next_page_url)
+    end
+
+    def prev_page
+      fetch_page(@prev_page_url)
+    end
+
+    def first_page
+      fetch_page(@first_page_url)
+    end
+
+    def last_page
+      fetch_page(@last_page_url)
+    end
+
+    def fetch_page(url)
+      uri = URI.parse(url).request_uri.gsub(/^\/v2/, '')
+      Collection.new(FreeAgent.client.get(uri), @resource)
+    end
+  end
+end
diff --git a/lib/freeagent/resource.rb b/lib/freeagent/resource.rb
index 1e33c8b..c49dad2 100644
--- a/lib/freeagent/resource.rb
+++ b/lib/freeagent/resource.rb
@@ -112,8 +112,7 @@ def self.define_all
 
     def self.define_filter
       self.define_singleton_method(:filter) do |params|
-        response = FreeAgent.client.get("#{endpoint[:plural]}/", params)
-        response[endpoint[:plural]].collect{ |r| self.new(r) }
+        Collection.new(FreeAgent.client.get("#{endpoint[:plural]}/", params), self)
       end
     end