Eric, or, Little by Little is a book by Frederic W. Farrar, first edition 1858. It was published by Adam & Charles Black, Edinburgh and London. The book deals with the descent into moral turpitude of a boy at a boarding school or English public school of that era.

The author's preface to the fourth edition reads:

The story of 'Eric' was written with but one single object—the vivid inculcation of inward purity and moral purpose, by the history of a boy who, in spite of the inherent nobility of his disposition, falls into all folly and wickedness, until he has learnt to seek help from above. I am deeply thankful to know—from testimony public and private, anonymous and acknowledged—that this object has, by God's blessing, been fulfilled.