Just saw this on Facebook. From the upcoming catalogue starting on 30/01/2020.
Similar deal to this one. Eight books to collect.
Edit: For those that can't get to Big W to pick up the free Wiggles books, you can now get them read by the Wiggles on YouTube.
30/1: This weeks book: Splish, splash, safety
6/2: This weeks book: Buckle up and be Safe
13/2: This weeks book: The Wiggles Love Books
20/2: This weeks book: Scrub, scrub, clean!