Goodreads is also doing a contest for a free book giveaway right now through July 6: https://www.goodreads.com/giveaway/show/326670-master-of-rods-and-strings
I’m pleased to announce that Gizmodo has included Master of Rods and Strings for its featured July 2021 releases. https://gizmodo.com/51-new-sci-fi-and-fantasy-books-to-add-to-your-reading-1847149169
Meanwhile, preorders remain available for both Print and Kindle.
Barnes and Noble and Amazon and Bookshop and Indiebound are all carrying the book, as well as other sites (Target, Walmart, and independent locations such as Powells, Penguin Bookshop, and Elliot Bay Book Company.