Program module  Book of receipts and expenditures with the Book of transactions ,
                        intended craftsmen 
                        contains a number of functions:
                    
                    
                        -  the book receipts and expenditures, 
-  the book of transactions 
-  accepting data from invoicing, 
-  accepting data from calculations, 
-  connection to the calculation of VAT, 
-  balancing books for freely selected period, 
-  views by customers and vendors ...