M is a book by Australian author Peter Robb about the Italian painter Michelangelo Merisi da Caravaggio. First published in 1998 in Australia by Duffy & Snellgrove, the book provoked controversy on its being published in Britain in 2000.
The hardback edition features 16 pages of colour plates and 64 pages of black-and-white images, and the paperback edition contains 8 pages of colour photos and 24 pages of black-and-white photos.
M has won the (Australian) National biography Award and the Victorian Premier's Award