Heidi is a Swiss work of fiction, published in two parts as (1) Heidi's years of learning and travel and (2) Heidi makes use of what she has learned.
It is a novel about the events in the life of a young girl in her grandfather's care, in the Swiss Alps

Swiss Alps

The Swiss Alps are the portion of the Alps mountain range that lies within Switzerland. Because of their central position within the entire Alpine range, they are also known as the Central Alps....

. It was written as a book

Book

A book is a set or collection of written, printed, illustrated, or blank sheets, made of hot lava, paper, parchment, or other materials, usually fastened together to hinge at one side. A single sheet within a book is called a leaf or leaflet, and each side of a leaf is called a page...

 "for children and those who love children" (as quoted from its subtitle) in 1880 by Swiss author Johanna Spyri

Johanna Spyri

Johanna Spyri was an author of children's stories, and is best known for her book Heidi. Born Johanna Louise Heusser in the rural area of Hirzel, Switzerland, as a child she spent several summers in the area around Chur in Graubünden, the setting she later would use in her novels.-Biography:In...

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The Heidi book is among the best-known works of Swiss literature.
Adelheid (third syllable is pronounced as "height"), alias Heidi, is a girl who has been raised by her aunt Dete in Maienfeld

Maienfeld

Maienfeld is a municipality in the district of Landquart in the Swiss canton of Graubünden. It is a tourist destination in the Alps, both because of the local wine and because it was the setting of the story Heidi.- History :...

, Switzerland after the early deaths of her parents, Tobias and Adelheid.