Part of a larger Crest Booksl paperback series, not all comics:
s636 continues from (non-comic book) Windows on the Square d635. Continues into (non-comic book) Dear Abby on Marriage k637.
k869 continues from (non-comic book) Herzog m868. Continues into Here Comes Charlie Brown (Crest Books, 1966 series) k870 (January 1966).
d1214 continues from (unknown non-comic book) d1213. Continues into (unknown non-comic book) d1215.
Notes: