OUT OF THIS WORLD #20 features the spectacular cover from Charlton's OUT OF THIS WORLD #4 , so there's a good chance that it'll have the 8-page story "From All Our Darkrooms..." from that issue as well. A favourite of mine, with some clever visuals. No doubt some other quality reprints and maybe some never before seen stuff as well, as these books tend to have.
#25 cover features Ditko's The Madman, which will be the 8th story to feature the character. If you're catching up, check out:
DITKO PRESENTS 
A DITKO ACT TWO 
DITKO #5 - FIVE ACT 
ACT 8, MAKING LUCKY 13, THIRTEEN DITKO'S 32s 
#16 - SIXTEEN 
#9 TEEN 
And no doubt a lot more.
You know, with 32+ pages of original content every issue, the set of Ditko's 32s might have more pages of new Ditko work than any other series, or close to it...