Book 1: I Like Trains by Daisy Hirst
Theme Song: I actually used two theme songs for this one because I just love them both:
Choo Choo Train by Patty Shukla and Chugga Chugga Choo Choo by Choo Choo Soul. They’re both available on Spotify as well. The Patty Shukla song is great for doing movement & actions together, while I’ve found the Choo Choo Soul song better for jamming out/mini-dance party.
Book 2: Wake Up, Freight Train! by Danna Smith