perl_cookbook:
      id: 1   
   title: Perl Cookbook
    isbn: 957824732X
     ean: 9789578247321
     upc: 636920527114
 edition: 1
 
java_cookbook:
      id: 2   
   title: Java Cookbook
    isbn: 9867794141
     ean: 9789867794147
     upc: 236920522114
 edition: 1

mysql_cookbook:
      id: 3   
   title: MySQL Cookbook
    isbn: 059652708X
     ean: 9780596527082
     upc: 636920527084
 edition: 2