The image shows the cover of the first edition, issued in 2010.
Maybe these two articles are helpful for you …:
https://www.axisandallies.org/p/pacific-1940-and-europe-1940-second-edition-announced/
https://www.axisandallies.org/p/whats-new-in-axis-allies-pacific-1940-and-europe-1940-second-editions/
… additionally you can search for forum topics covering the details (might be hard to find, though).
If the differences don’t bother you you can use the board together with Pacific 1940 2nd. ed.
Find the current rulebooks here:
https://renegadegamestudios.com/axis-allies-resources





