I have used Google and thence of course Wikepedia for research, but only guardedly. There is a lot of stuff out there that is good and helpful and even more that looks distinctly iffy! Good old Encyclopaedia Britannica is a Godsend though, for info about everything. I still use the 1970 edition which is a mainstay in my research library....

On the whole I still love to read up on the subject in books. Below are listed some of the main books I have used in researching The Warrior's Princess


Salway, Peter. The Oxford History of England Roman Britain (1985)

" " The Oxford Illustrated History of Roman Britain (1993).

Webster, Graham The Roman Invasion of Britain (Batsford 1993)

" " Rome against Caratacus (1993)

" " Boudica (1993)

Tacitus The Annals of Imperial Rome translated by Michael Grant

(Penguin Books 1992)

Matthews, Rupert The Age of the Gladiators (Arcturus Publishing 2003)

Rawson, Beryl (ed) Marriage, Divorce and Children in Ancient Rome (Oxford 1992)

Cruse, Audrey Roman Medicine (Tempus 2004)

Croom, A.T. Roman Clothing and Fashion (Tempus 2002)

Niblett, Rosalind Verulamium (Tempus 2004)

Allason-Jones, Lindsay Women in Roman Britain (British Museum Publishing 1989)

Bedoyere, Guy de la Defying Rome (Tempus 2003)

" Roman Towns in Britain(English Heritage/Batsford 1992)

Edwards, John (translator and adaptor) The Roman Cookery of Apicius (Rider 1989)

Matyszak, Philip Ancient Rome on 5 Denarii a Day (Thames & Hudson 2007)

Cowan, Ross, (Ill. Angus McBride) Roman Legionary 58 BC-AD 69

Fields, Nic, (Ill. Adam Hook) Roman Auxiliary Cavalryman AD 14-193

Ramsay, William M St Paul The Traveller and Roman Citizen (Kregel 2001)

Clark, Gillian Christianity and Roman Society (Cambridge 2004)

Donfried, KP & Richardson, Peter, (eds) Judaism and Christianity in First-Century Rome (William B EErdmans Publishing Co. 1998)

I constantly referred to the Ordnance Survey Historical Map of Roman Britain. I love maps!

And I couldn't resist Rome in spectacular cross-section by Stephen Biesty (OUP 2004)


As one would expect of a subject that has fascinated me all my life, I have a huge library of books on the Celts and the Druids, and I have dipped into most of them when writing my Celtic books. Some of those I used most for The Warrior's Princess are listed below.

The Ordnance Survey Historical Map and Guide to Ancient Britain (ditto as above!)

Ross, Anne Pagan Celtic Britain (Constable 1992)

" The Pagan Celts (Batsford 1986)

" Druids (Tempus 1999)

" Everyday Life of the Pagan Celts (Batsford 1970)

Beresford Ellis, Peter Celtic Women (Constable 1995)

Ehrenberg, Margaret Women in Prehistory (British Museum Publications 1989)

Ashe, Geoffrey Mythology of the British Isles (Guild Publishing 1990)

Green, Miranda J Exploring the World of the Druids (Thames & Hudson 1997)

Allen, Stephen Celtic Warrior 300BC- AD100 (Osprey Publishing 2001)

James, Simon & Rigby, Valery Britain and the Celtic Iron Age (British Museum

Press 1997)

Howell, Ray Searching for the Silures (Tempus 2006)

Matthews, Caitlin The Celtic Tradition (Element 1995)

Warner, Philip Famous Welsh Battles (Fontana 1977)

Bayley, Michael Caer Sidhe The Celtic Night Sky 2 vols (Capall Bann 1997)

Newark, Tim Celtic Warriors (Blandford Press 1988)

Modern Rome:

I relied heavily on two guide books The Rough Guide to Rome by Martin Dunford and Rome in DK's Eyewitness Travel series for actually wandering round the city and finding the sites I wanted, plus numerous guidebooks etc bought on site.

My own diaries and photos from previous visits were a great help as were the huge heap of guide books, travel book and even novels set in Rome pressed on me by friends the moment they heard I was setting some of The Warrior's Princess there. Obviously Rome is a very personal place and everyone who has ever been there has their favourite approach, their favourite area and their must-see bit! It was hard to limit myself to the parts of the city dictated by the story so in the end I used what every author should - my own eyes and nose and ears!! Plus camera and note book. And of course, that little bit extra which comes from listening beyond the present, and noticing the things one can see from the corner of ones eye in the shadows.


The Tarot has always fascinated me, not as some sinister, devil-driven challenge to orthodoxy, nor as a way to tell people's fortunes but as a library of archetypes which can be read and studied and used for meditation and a self exploration.

Three of the titles I have found the most helpful in understanding the basics were:

Pollack, Rachel Seventy-eight Degrees of Wisdom (2 vols) (The Aquarian Press)

Venn-Lever, Barbara Tarot for the Curious Spirit (O Books)

Eason, Cassandra, Tarot for Today's Woman (Foulsham)

I own several decks - choosing ones that appealed particularly because of their artwork and orientation rather than the more traditional packs. I like the Celtic ones and the nature based ones. Some of these come with detailed and extensive books of their own which are helpful and enjoyable. The little leaflets which come with some packs contain the minimum traditional meanings of the cards for fortune telling and are not really of any help with the kind of tarot work I do.

For The Warrior's Princess I naturally needed a couple of books in Italian as well.

Spinardi, Franco Tarocchi (Armenia)

Pedirota, L & Stanghi, E. Il libro complete dei Tarocchi (Editzioi Mediterranee)