A monograph by Piotr Hoffman on first-demand payment clauses, and in particular on suretyships on first-demand as compared to first-demand bank guarantees, has been published by Duncker & Humblot: Payment on First Demand. The book includes a detailed, practical analysis of all aspects of first-demand clauses, and is based on an in-depth analysis of the case-law. It covers German law, but the discussed issues are relevant in other jurisdictions as well.