I haven't read Bowers, I have a signed copy form Anthony Swiatek in my library, always liked it, but felt it could have been done with a lot more meat and substance in it. Bowers is the master numismatic author, so I couldn't see how you'd go wrong with his book either. I like Flynn's books, I'm not a fan of his titles he tends to call them all "The Authoritave References" I find that a tad strong, who is to say someone won't come out with a better book in the future? His writting is quite dry and tends to come off as a "know it all" but his research is solid, and his facts are good IMO, and he seems like a nice guy, I just wish he was a little less pretentious in his writing.
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA
Life Member #3288 in good standing since 1982, EAC Member #6202, NBS Member, 2¢ variety collector.