We all say this, because we all think we're the next big thing (and because if we don't fuel our own ego, no one else will). I think my book has crossover appeal (HA!) but I don't know whether or not to mention it in the cover letter.
Recieved wisdom has it, that one does not.
But I found this on a certain agent's site;
"[Casseopeia Winterholter] is interested in finding fantastic children's fiction for all ages, including crossover, YA... etc."
So should I mention it or let her figure that one out for herself?
You could mention that you believe your book has widespread appeal, and will cater for all age groups, but be specific about whether your book is for young or older children, young adults, or adults.
You should mention age groups. For example, 6-12 year olds, 9-15 year olds, or 12-18 years. For commercial reasons, your publisher will need to decide where your book is best placed by genre and age group.
However, many books have had more than one jacket design to attract various age groups, and therefore maximise the earning potential..