FIAP Definition of Monochrome Used in PAGB Competitions – A black and white work fitting from the very dark grey (black) to the very clear grey (white) is a monochrome work with the various shades of grey. A black and white work toned entirely in a single colour will remain a monochrome work able to stand in the black and white category; such a work can be reproduced in black and white in the catalogue of a salon under FIAP Patronage. On the other hand a black and white work modified by a partial toning or by the addition of one colour becomes a colour work (polychrome) to stand in the colour category; such a work requires colour reproduction in the catalogue of a salon under FIAP Patronage.
Monochrome photography is photography where each position on an image can record and show a different amount of light, but not a different hue. It includes all forms of black-and-white photography, which produce images containing tones of neutral grey ranging from black to white. Wikipedia
Presentation on Monochrome Photography by Tom Bown:
https://youtu.be/uY1108zXj44
Seven Elements of the Best Black and White Photos:
Some Excellent Monochrome Photographers
| Traditional | Contemporary |
| Ansell Adams | Tim Booth |
| David Bailey | Thierry Bornier |
| Brassai | Trevor Cole |
| Henri-Cartier Bresson | Jack Curran |
| Robert Capa | Adolfo Enriquez |
| Robert Doisneau | Toni Frissell |
| Jacques Henri Lartigue | Alexander Kamakaev |
| Man Ray | Francisco Negroni |
| Alfred Stieglitz | Marcel Rebro |
| Erich Caparas | Guilio Zanni |
More hints and tips
https://youtu.be/WGxqKfLSyfM The Best and Worst Ways to Make Your Photos Black and White 4:32
https://www.pixpa.com/blog/black-and-white-photography
https://gurushots.com/article/black-and-white-photography-guide
https://expertphotography.com/black-and-white-photography-tips-2/
https://icons8.com/articles/black-and-white-photography-tips/