Guides, tools, and research hubs
Explore USPS stamp topics
Start with a topic center, then follow its focused guides, tools, data pages, and specialist articles. Product collections remain organized separately in the category directory.
Buy and mail
Buying, postage, and mailing guides
23 related guidesWhere to Buy StampsCompare buying channels, availability, and practical purchase decisions.PricesStamp PricesCheck current postage values, price changes, and how older stamps apply.RatesUSPS Postage RatesCompare postage categories, standards, and applicable conditions.ToolPostage CalculatorEstimate required postage and the number of stamps for a mailing scenario.11 related pagesTypes of Postage StampsUnderstand postage classes, stamp types, and when each one applies.How it worksHow Postage Stamps WorkLearn how postage value, validity, and mailing rules fit together.Prepaid postagePrepaid PostageCompare stamps, prepaid envelopes, labels, and metered postage.Step by stepHow to Mail an EnvelopePrepare, address, stamp, and send letters through USPS.
Collect and research
Stamp history, releases, and collecting topics
Start hereVintage StampsChoose between mailing, collecting, valuation, and purchase research.Collector guideClassic & Old StampsIdentify older issues and explore preservation, history, and collecting themes.HistoryHistory of Postage StampsFollow the invention and development of postage stamps and U.S. postal issues.50 statesU.S. State StampsBrowse statehood and state-related stamp research by state.By yearUSPS Stamp Release ArchiveFind U.S. stamp issues by year and follow release-specific pages.Series guideBlack Heritage StampsExplore the series history and related Black history stamp issues.AnniversaryUSPS 250th Anniversary StampsDistinguish postal and national anniversary issues and their subjects.CharactersPop Culture & Character StampsVerify official issues featuring characters, entertainment, and popular culture.MusicUSPS Music StampsExplore music-themed issues, performers, and genre-specific releases.
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