Reynolds has also written four full-length biographies. The first, on the 1960s group The Walker Brothers, was released in the UK and US by Jawbone press in August 2009. The second, a commission by Plexus books, on the singer-songwriter Jeff Buckley, was published again in both countries in July. In 2011, Leonard Cohen – a remarkable life, Reynolds' biography on Leonard Cohen, was published by Omnibus press. It has since gone on to be published in eight languages. In 2015 his biography of the band Japan: A foreign place was released via Burning shed.

Reynolds was born in Cardiff, Wales, in the early 1970s. Reynolds has lived in London, Paris, Shropshire, Spain and Cardiff. He currently lives in Wales.

Since 1992, Reynolds has also worked as a Journalist, writing essays and critiques for various magazines in the UK and the US, most notably Stop Smiling magazine.

In 1993, Reynolds moved to London where he formed the group Jack, on lead vocals, signing a music publishing deal with Warner/Chappell Music as well as a record deal with independent label Too Pure.

The first Jacques album, How To Make Love, Vol. 1 (1997) was produced by Momus, featuring a more sparse, experimental sound than Reynolds' work with Jack. Compared to the critical garlands bestowed upon Pioneer Soundtracks, the hastily recorded album (completed in seven days) received mixed reviews.

He has collaborated with many European Musicians, both as a co-composer and Producer, including the Italian groups Hollowblue and Marti and the Spanish group Migala. In 2000, he sang with the Moscow Philharmonic on an album by the French film Composer Franck Roussel. In 2016 he composed soundtracks to two feature-length films: Open my Eyes and an adaptation of the Colin Wilson novel, Adrift in Soho.

Sales were modest for both Jacques albums, and a planned third album was cancelled midway through recording, when Jacques were dropped by Setanta in 2001.

In 2002, Les Disques du Crépuscule published a collection of his lyrics, poetry and prose entitled "These Roses taste like ashes". This was followed by another collection of poetry in 2007 : 'Calling all demons'.

Reynolds has released two solo full-length albums – Neu York (2004), credited to "anthony", and British Ballads (2007), released under his own name. A footnote to Neu York – (I was born) in prehistoric Spain – was released in 2005 on the Spanish Moonpalace label.