"Town was chocka," Mrs Ramsden said.
The weather was "wild and woolly", but "hundreds and hundreds" still came to town. "It didn't slow people down at all," she said.
Many came from Wellington, with one stallholder saying the train had plenty of booklovers.
Mrs Ramsden said it was "really good" for Featherston to have the event and attract so many.
Spellbinding bookbinder Jill Rose ran a stall in the Library. She said she saw about 100 people come through on Saturday but there were significantly less on Sunday.
Mr Gould said they made a good start with Booktown and look to get the whole town involved by introducing more bookshops over the next year. He said they have a lot to think about before taking the next step.
"I think we have established something really good," Mr Gould said.
"I'm looking forward to next year already," Mrs Ramsden said.