How far municipal bonds have come since I joined the bond business in 1963 and the first edition of The Fundamentals of Municipal Bonds was placed in my hands! Long-term issuance hit all of $10 billion a year, genaral obligation bonds constituted 95 percent of the municipal bond market, and 'they're safe, they're tax-free, and they don't fluctuate much' could almost have said it all. Fast forward a half century to the Sixth Edition which sheds lights on the $2.9 trillion in municipal bonds now outstanding. Writer Neil O'Hara has performed a feat of clarity and omniscience for SIFMA, explaining and fitting all the pieces, players, and moving parts of this ever expanding municipal bond market into a coherent whole. Read and underline, ye beginners at bonds, salty old pros, elected officials, attorneys at law, financial writers, quants, wonks, and believers in public investment in the physical underpinnings of our quality of life. Munis are the one tool you've got for lifting this magnificent country off its magnificent bottom. And here is literally everything you need to know to do it.