Writeacher, could you please check if everything is OK? Thank you.

1) Samuel Richardson was born into a Puritan middle-class family.
He moved to London quite young, and there started working as a printer.
2) At the age of 51, when he was one of London's most reputable and prosporous printers, he unexpectedly turned novelist (to story-telling?):
3) In 1740 he published Pamela, an epistolary novel about a young servant who is persecuted by her master, a young nobleman.
4) The book was immensely successful but it also caused a great debate in England for the way it represented the relationships between the different social classes.
5) In his old age Richardson was revered as a great novelist and a public figure.
6) Pamela is the first psychological novel written in English. The reader is taken inside the mind of Pamela and is invited to share her innermost thoughts and moods.

1. comma after "Puritan" (see #5 here: http://grammar.ccc.commnet.edu/grammar/commas.htm ) -- I'd also switch the order of those adjectives: "...middle-class, Puritan..."

2. spelling: prosperous
"novelist" is fine

3. Put Pamela in italics.

4. one comma needed; do you see where?

5. one comma needed; do you see where?

6. italics for the first instance of "Pamela" but not the second; do you see why?

All else is fine.

1) To check if everything is correct, let's analyze each statement one by one.

- To confirm the information about Samuel Richardson's background and early career, you can consult reliable sources such as biographies or scholarly articles on his life.

- For verifying the publication of the novel "Pamela" and its impact on English society, you can refer to literary critiques, historical accounts, or literary analysis of the novel and its reception.

- Finally, to verify the claim that "Pamela" is the first psychological novel written in English, you can consult literary scholars, literary history textbooks, or essays that discuss the development of the novel as a genre.

By reviewing these credible sources, you can ensure the accuracy of the information provided.