For the time being, contributions can only be accepted in UK pounds, US dollars or Euro, with a minimum of 10 and a maximum of 100.
10% will be donated to an organisation dedicated to supporting Owls. The remainder, used to fund the cost of publishing future Owl books, will be treated as a credit for your future purchases. If it is not used for new publications or spent on purchases within 18 months it will be returned to you or, if you prefer, also donated to an Owl support organisation.
Contributions of £25 / EUR 30 / USD 35 or more will also get a mention, with your name if you wish, in the next book to be published.