Q: I'm a beginner tatter, what thread do I start with?
A: You want to start with a larger thread so you can see the tatting stitches.
Once you have learned and are ready to make a project, you are going to a lot of time and trouble to make that project use a high quality thread. I personal like the Flora/HH thread! It comes in over 75 solid and variegated colors. Flora/HH is a cordonnet, holds its shape, and is a high quality thread. HH/Flora