No, Mrs. Clark will not be remembered for high-brow literature,
but she surely gave entertainment and diversion
to generations of readers of suspense/mystery stories.

Without reservation I recommend her volume of memoirs, titled
Kitchen Privileges, about growing up
Irish-American in the Bronx,
and struggling to make a living
after the untimely death of the father of her children.

Even more,
I recommend the audiobook version of Kitchen Privileges
read by Mary Higgins Clark herself.
It made wonderful listening while
driving hundreds of miles alone on North American freeways and toll roads,
years ago.