Obvious typographical and printer errors have been corrected without comment. Other than obvious errors, the spelling, grammar, and use of punctuation are preserved as they appear in the original.
In addition to obvious errors, the following corrections have been made:
1. Page 22: a missing quote mark was added to the end of the sentence beginning, "Geo. Dyers, in the same journal says: "Advertising...."
2. Page 34: extra "the" removed from the phrase, "as Kipling says: "The...."
3. Page 53: a missing quote mark was added to the end of the sentence beginning, "People are all after money...."
4. Page 139: "Voluntary" changed to "Involuntary" in the phrase, "Involuntary attention, on the contrary...."
5. Page 228: "salesman" changed to "salesmen" in the phrase, "Veteran salesmen gauge...."
6. Page 237: "hereby" changed to "here by" in the phrase, "We can have these goods here by about such-and-such a date."
Other than the above errors, no attempt has been made to correct common spelling, inconsistencies in punctuation, grammar, etc. The author's usage is preserved as printed in the original publication. Unconventional spelling which has been preserved includes, but is not limited to the following:
advisibility
argumentive
irrefragible
propogandist
Inconsistencies in hyphenation include:
baseball/ base-ball
pocketbook/ pocket-book
sidetrack/ side-track
straightforward/ straight-forward