Richardson's "Pamela" is an example of -

Pamela, in full Pamela; or, Virtue Rewarded, novel in epistolary style by Samuel Richardson, published in 1740 and based on a story about a servant and the man who, failing to seduce her, marries her.

Epistolary Novel
- A novel told through in the form of letters.
- The narrative of this type of novel is carried forward by letters written by one or more of the characters of that novel.

Samuel Richardson (1689 - 1761), an English novelist.
His major novels were:
- Pamela (1740) and
- Clarissa (1747–48).

Source: An ABC of English Literature, Dr. M Mofizar Rahman and Britannica.