It's possible that:
* The name is slightly misspelled. Perhaps you're thinking of an author with a similar name like "Ian Dicker" or "Ian G. Dickinson".
* The author is relatively unknown. There may be a less famous author with this name who has published independently or under a pseudonym.
To help me find the author you're looking for, could you please provide:
* Any other information about the author, such as their nationality, genre they write in, or any specific titles you remember?
* A link to any website or publication where you found this name.
With more information, I can help you locate the correct author.