What does writing a book look like?

The other night my husband came home to find me sitting in the living room in complete silence.
"What are you doing?" he asked.
"Writing," I said. You’d think he’d know by now. To be fair, sometimes the process is hard to spot.
I hadn’t heard the word ideating until I saw this image but it captures one part of the process.
I’ve had a new series building in my imagination for a while. Sitting quietly is one way of shuffling the pieces around before I put pen to paper or fingers to keyboard.
Book one in this new series is shaping up now but I’m not ready to discuss particulars. I’m kind of superstitious that way. Let’s just say I’m moving between the researching, thinking, and writing stages at present.
When the books are more formed I’ll share this exciting new world with you.