Here are some comic strip and cartoon books scheduled for May 2019 release.
Images and links via Amazon (though ordering through your local comic book shop is a good idea.)
The Complete Peanuts 1971-1972 (Vol. 11) Paperback
Prince Valiant Vol. 19 1973-1974
Superman: The Golden Age Newspaper Dailies: 1947-1949
The Amazing Spider-Man: The Ultimate Newspaper Comics Collection Volume 5 (1985- 1986)
Business Cat: Hostile Takeovers
Andy Capp: 60 Years of Thinking About the Big Issues
Peanuts and American Culture: Essays on Charles M. Schulz?’s Iconic Comic Strip
* top image: Sergio Aragonés’ Groo the Wanderer