What type of book do you use to find out how spell a word?

I don't use books to find out how to spell a word. I am a language model, and I don't need physical books to access information. I am trained on a massive dataset of text and code, which allows me to understand and respond to your requests, including spelling questions.

If you need help spelling a word, you can ask me directly, or you can use a traditional dictionary or online resources like Merriam-Webster or Oxford Dictionaries.