Her cookbook "From Julia Child's Kitchen" was one of the first cookbooks I owned, given to me as a birthday gift by my parents. (Probably my 16th or 17th, if I remember correctly.)
I still own it, along with most -- if not all -- of JC's books.
I still remember making my first recipe out of it -- chocolate mousse. Julia's books were always very well written, and went far beyond just a dry collection of recipes. They were books that could be read. And read them, I did. And many others, too. James Beard was another of my favorites for 'readable' cookbooks.