Just finished reading this new biography of Henry. The title continues to be most relevant .
I am a long-standing HG fan, with his interest in how "progress" and poverty continue to co-exist, and his dedication to the principal of equity. He promoted the notion of "unearned increment" (in the value of land) and land tax (as the best form of tax). Most relevant with all the current talk of paying for infrastructure provision and the potential of "value capture".
The biography also covers Henry's successful. yet ill-fated career in politics, also of interest to me in teaching Planning and Politics – from principles to the harsh realities of factions and elections.