It's morning and this is a good topic in hard times. Here is what I observe:
Makers learning and outputting their skills to make a quality knife are a SMALL part of what it takes to earn a living through this.
To do so requires a continual source of cash flow. So pre-orders should to be in place. That means you would be TAKING orders.
Fortunate are those who have built up such a following that the need for 'books' is eliminated. I get it. No artist wants to make the same knife three years down the road. Unless... they enjoy an income stream more than unbridled artistic freedom.
Methods need to be streamlined and one has to be aware of output. You are a one person 'factory' now.
What's 'fresh' can get stale. ALL handmade knives are luxury items, so it has the be desired. This artist NEEDS to have fresh ideas and offerings. (This competes with the sentences above.) NEW development of ideas and skills.
To be fresh one needs to have an awareness of what the current knife PURCHASING climate is looking for. Who are your competitors? What are they doing? Are you as exciting and desirable? Uh oh....
So one MUST also have a social presence to remain out in the forefront of the purchasing clients. THIS is very foreign and time-consuming. There is a LARGE variety of sources: Here, Facebook, Instagram, Youtube, Etsy, other forums, and on and on.
Or.... just trust that you will still have followers because of your existing quality and current (short term?) desire.
Knifemaking and running a successful business are two different skill sets. (So is photography, BTW. I'm with you.)
Those who have figured out that 'full-time knifemaking' is a difficult slope, and supplement (or completely invert) their work income to another source are diversifying their portfolio.
Please add what I've missed or correct me.