pb?Paperback. Typically 7" by 4.25" (18 cm by 11 cm) or smaller, though trimming errors can cause them to sometimes be slightly (less than 1/4 extra inch) taller or wider/deeper.
Notes: Data from Amazon UK, Waterstones, publisher's site and uk.bookshop.org between 2022-06-28 and 2022-07-03.
Listed with a publication date of 2022-07-07 (although this was one of many several dates listed, going back as far as early 2021):.
As that date, none of the aforementioned sites seem to have this in stock, and it is no longer listed on the publisher's site. This gives the impression that it may have been delayed or cancelled - it may be worth noting this publication had a number of earlier publication dates listed, going back as far as early 2021, but getting delayed each time.
As of 2022-08-28 (approximately 6 weeks later):
Amazon UK lists it with the original date, but no stock available
Blackwells has 2023-01-01, which seems to be a placeholder or dummy value
Waterstones and the publisher's site no longer list it at all
As such, this will be considered unpublished unless firm evidence to the contrary is found.