Yep,The blue cover is the 1st edition
I never really knew he came out with a 2nd edition until I came on BGG and until I received the game from you to then see the Yellow was the 2nd ed.
Frankly I like the Blue rulebook better as it's in larger print.My poor middleage eyes strained reading the 1 page very small print rules
Yeah, I thought the blue book as the 2nd edition because it was so much neater and easier to read. Thanks for the info. I'll have to update some captions to pictures I uploaded