Ernest Hemingway's Style

after reading a movable feast, Ernest Hemingway's book about his years in Paris, I became a big fan of his works. although I read the book two years ago, I'm still under the influence of the places, people, and events; and I can easily remember many sentences from the book. that's because Ernest Hemingway's writing style is simple, direct and concise. It keeps your eyes glued on it from the first sentence to the last. the description of the people, places and tastes conveys a great impression which lasts for a long while.
Once we have been familiarized with style of writing at grammar class, I was interested in knowing about Hemingway's style technically. I googled and achieved interesting results. the adjective hard-boiled--that means rough and unemotional was used to describe Hemingway's style. Actually hard-boiled literature was typical during his era, and Hemingway was regarded as the symbol of hard-boiled literature.
It was really surprising because I had found Hemingway's style full of emotion and feeling. my confusion was cleared later when I read about further biographic researches which had revealed that behind the straightforward truths and facts sentimentality and sympathy lies. the reader feels their presence although they are not visible. that is because of Hemingway's awareness of the relation between the truth of facts and emotions.
my English knowledge is'nt sophisticated enough to analyse writing styles, but I'm so keen to consider writing styles later on.