1/ whaever happened with the idea of running an ad in some Scotland / USA magazine?
2/ about your book.
I've spent the past two decdes in the Canadian book publishing business, including have one book with about 300 of my pictures pubished.
Canadian publishing is fairly similar to UK publishing,I beleive, but there are large diffrences, too.
I have no idea of the specifics of your project, but if, for instance ...
You want a 100 page book of portraits of children undergoing medical treatm,ent -- forget it.
You want a 150 page book of landscapes of locations in the UK which are n danger of disappearing unless soem environmental water management program alters or maintains the hydrological aspects of municipal planning -- maybe.
Is the marketpart of the UK, the whole UK, or the UK and overseas?
There are three kinds of publishers.
One kind agrees with your idea, pays you for it (installments) gets your pictures and your words and works with you to make these of publishable quality, produces the book, and orgaanizes distribution.
A second kind, sort of, is known as a packager. A packager, often an individual, does most of the work of a publisher, except for the printing, and then takes the finished manuscript, piictures, art work, layouts, etc., to a printer for reproduction.
Packagers try to arrange deals with publishers for distribution.
And then there are vanity presses / custom publishers.
You take your idea, and a bag of money, to them, and they puboish your book for a fee, which they charge you. Generally, they deliver cartons of books to you, and it is up to you to sell them. Businesses use these to get comapny histories written, an rich old coots use them to get books of their poetry published.
And most smallish, and many big,publishers, are open to new ways of doing things. So, the more publishing execs, often called editors (this word has many meanings in the publishing world), you talk with, the better your chances.
Editors are hard to reach, which brings us to agents.
Agents represent authors, and filtr the ideas of authors. If agents thinks an idea is worthwhile, they'll pick several editors they think will be interested, and approach them with the idea. Whichever publisher will pay the most (or do the best deal, defined some other way than price) gets to honor of publishing the book.
SPONSORSHIP -- Someone mentioned this already. In the book publishing business in the UK, Canada, the USA and probably other countries, book publishing comes under special laws. In Canada, the credits a sponsor gets can severely affect the tax status of the publiscation, and the postage rates if it is mailed to customers. I was on the edge of a book called Photographs Thet Changed the World, and there were discussions with awyers about how big the mentions could be of Kodak and other sponsors.
The whoile Day in the Life Of..... series required special tax treatment because of the heavy involvement of sponsors.
Finally,,,
The toughest question in publishing is how long to make the press run. It's fairly easy to put a fully-text book back on the press for a second or third printing, but it's much harder to reprint a coffee table photo book. If your charity, for instance, promised to buy 5,000 copies...
Hope this helps.
BAK