Eric II The Encyclopedia of Roman Imperial Coins

The release of ERIC II follows five years of intensive work in going well beyond the scope of the first edition. Where 2005's ERIC provided a solid introduction into the field of Roman coinage this followup aims for a much higher ambition with a fully comprehensive catalog of even the most obscure issues while maintaining the user-friendly format of the original. Also retained and significantly enhanced is the use of high-resolution color photography from cover to cover. The plates for each ruler have been upgraded with better and more photos with the rest of each section making rich use of color elsewhere. The listings are now more informative and are internally referenced with pertinent ancillary data. A significant improvement has been made in extending the catalog over the entire Byzantine series thus covering the complete span of coinage from the days of Augustus through the downfall of Constantine XI some 1,500 years later. Numbering some 60,000 entries, this landmark work marks the first occasion such a wide swath of numismatics has been covered in a single volume.

From Library Journal:

Although twice the page count of the 2005 edition, ERIC II is not just an extension of its predecessor. It is a fundamental revision and scope expansion, including 60,000 entries that incorporate essential numismatic esoterica. The foremost subject resource since H. Cohen's eight-volume Description historique des monnaies frappes sous l'Empire Romain of 1880-1892, ERIC II covers the 1500-year period between Augustus and the 1453 fall of Constantinople. Opening with an informative introduction that explains denominations and mint marks, Suarez (ERIC I) divides his subject into 15 chronologically organized chapters, surveying the ruling culture and detailing each imperial coin's minted permutations. An absolutely vital guide for numismatists.