To make a custom doll of a teacher holding a book, you have to follow a detailed and exact process. Here's a full breakdown of how you could go about it:

1. Design Brief: Before you start, think about the teacher you want to turn into a doll. Give information about your gender, eye color, hair color, and favorite outfit. Don't forget to name the book and say how it will be shown (for example, the teacher could hold it under their arm, in both hands, or with one hand).
2. Choose a Manufacturer: Look for companies that make customized bobbleheads. Many of these companies are built on the internet. You should pick the one that has good reviews from customers and can be customized to the level of detail you want.
3. Submit Your Order: When you place your order, give the company a detailed account of what you want from your design brief. Some companies may let you send them pictures to get a better match.
4. Review Proofs: The people who make unique bobbleheads will often email you mock-ups or samples of the finished product so that you can approve it. Now is your chance to make any changes that are needed to make sure the figure meets your needs.
5. Manufacturing and Shipping: Once you agree to the design, the company will make and paint the bobblehead. When it's done, it will be sent to your address by mail.
6. Unboxing: When you get your custom teacher bobblehead, make sure it fits your order and is in good shape by checking it over carefully.

Remember that for custom bobblehead production to go smoothly, you need to be able to talk to the maker and give them as much information as you can. This improves the chances of getting a figure that looks a lot like the person you want.