The drum thing

The drummer is usually the least well-known member of any band.

Yet behind every frontman is the person keeping the beat, and often acting as the music's driving force.

In these incredible portraits, Deirdre O'Callaghan places drummers squarely in the spotlight.

Photographing her subjects in their private rehearsal spaces and residences - from studios, bedrooms and basements to garages and gardens - allows her to capture the true essence of their personalities and lifestyles.

She has photographed almost 100 celebrated musicians for the book, including Tony Allen, Ginger Baker, Travis Barker, Cindy Blackman, Patrick Carney, Terri Lyne Carrington, Chris Dave, Jack DeJohnette, Bryan Devendorf, Sly Dunbar, Steve Gadd, James Gadson, Dave Grohl, Mark Guiliana, Steve Jordan, Jim Keltner, Airto Moreira, Larry Mullen Jr, Neil Peart, Questlove, Jim Sclavunos, Ringo Starr, Lars Ulrich, Joey Waronker and Jack White.

Each image is accompanied by excerpts from O'Callaghan's personal conversations with the drummers.

The result is a fascinating look at a truly diverse world made up of men and women from every walk of life, united by a single, emphatic passion.