What steps does one go through to write a pattern? How do you go from idea to selling so that others can make your design? I look at some steps involved in the process of Design and Pattern Writing.
Here are some resources that I found that might help you:
How to Design Your First Knitting Pattern, by Clare of Sister Mountain
Writing Knitting Patterns, by The KnitWit
How To Design, Edit, and Sell Your First Knitting Pattern, by The New Wave
How to Lay Out a Knitting Pattern PDF Using Google Docs, by Clare of Sister Mountain