*How to Win Friends and Influence People* was published in 1936 and has been in print ever since. Dale Carnegie wrote it based on the courses in public speaking and interpersonal communication that he had been teaching in New York since 1912. The book is a practical compilation of principles for effective communication, drawn from twenty years of working with thousands of students—ranging from salespeople and managers to politicians and military officers.

"A Placebo for Yourself" is a book that sparks sharply polarized opinions. Some readers consider it a revelation that changed their lives. Others—including many scientists and doctors—point to serious exaggerations and a loose handling of scientific data. An honest review must acknowledge both sides, because the book is neither an unqualified revelation nor pure quackery. It occupies a complex position between the two.

"The Road to Financial Freedom" was published in Germany in 1998 and became a bestseller that most readers in the post-Soviet space have known since the 2000s. For its time and its audience, the book played a role similar to the one Hill played for Americans in the 1930s—it offered the first structured look at personal finance for people who had grown up in a system where private capital was not encouraged and financial literacy was not taught.