The book 'Credit Insurance' focuses on credit insurance and its specific rules for securing liquidity. In addition to standard contracts, special forms of credit insurance, such as investment goods credit insurance, excess of loss, and international programs, are explained in relation to the insured risks, including insolvency, non-payment/default, and political risks. Supplementary options for coverage, such as manufacturing risk, consignment stock, and retention, are described, as well as their significance in factoring. Furthermore, the possibilities for credit risk management with software solutions are presented. 'Credit Insurance 4.0' offers a glimpse into the future as a digital ecosystem through the use of new technologies, such as artificial intelligence and blockchain.