You have learned about the business and its proprietor is reacted as separate entities. It implies that separate accounts must be kept in the ledger for recording transactions among the proprietor and the business. Generally, two accounts that are:  Capital Account and Drawings Account are kept for this purpose. Anything the proprietor brings in the business is termed as his capital and credited to his Capital Account. As the same, when he withdraws cash from the business for his personal utilize, he is to be debited along with the amount withdrawn through him. That debit is specified to his Drawings Account. Drawings Account is also debited while the proprietor acquires goods from business for domestic utilize. Note here the proprietor can be charged only through the cost of goods taken and not its selling price. In the cost of these goods are credited to  the Purchases Account as this is   which it was purchased for him and should therefore be excluded from the purchases for the business