Window Book has helped clients manage their operations more profitably since 1988. A leader in mailing and shipping software for Lettershops, Corporate Mailers, Service Bureaus, and Mail Owners. Window Book's best-in-class postal solutions include: Intelligent Mail Full-Service, PostalOne!, eDoc, Mail.dat, Mail.XML, FAST, bound printed matter, post-presort data management, entry planning, drop shipping, postage accounting, postal documentation & statements, meter and stamp management, Express Mail and Priority Mail Open and Distribute, Commercial Plus rates, eVS, delivery confirmation, and manifesting shipping systems