Frost drifted through a string of occupations after leaving school, working as a teacher, cobbler, and editor of the Lawrence Sentinel.
Went downstairs to fetch this today, thought I might flip through it a bit as I worked through Frost's poetry this year.
Of course something like this is overkill for most poetry readers, there isn't usually an interest in "critical essays", just want to read and enjoy the poetry. It refers to the fact that when Frost published his first slim volume (A Boy's Will) in 1913, he was 39 years old, and had simply collected in it what he thought to be related poems that had been written over the two decades previously.
Additionally, there seems to be no subject too simple or complicated for Frost.
His topics cover a variety of issues from moral dilemmas to mending fences.