According to the Merriam Webster dictionary, a pamphlet is an unbound printed publication with no cover or with a paper cover.
Dictionary.com define pamphlet as follows: A complete publication of generally less than 80 pages stitched or stapled together and usually having a paper cover, a short treatise or essay, generally a controversial track on some subject of contemporary interest: a political pamphlet.
of the pamphlet: 1375 - 1425; late Middle English pamflet < Anglo-Latin panfletus, pamfletus, syncopated variant of Pamphiletus, diminutive of Medieval Latin Pamphilus, title of a 12th-century Latin comedy.
Pamphlets may be informative, persuasive or educational.
- Information is organised under headings and subheadings.
- To ensure clarity of meaning, paragraphs are short.
Sentences are simply written and are generally brief and to the point. - Diagrams and pictures often accompany the writing.
- Technical language is used where necessary.
- Tone: The material in an informative pamphlet is factual and the tone is neutral.
If the goal of the pamphlet is to persuade the reader, a more personal, emotive tone will be used.
Source:
EBH Joubert. English Grammar. In writing
http://www.dictionary.com/browse/pamphlet
https://www.merriam-webster.com/dictionary/pamphlet