I is implied in everything you write on your resume. Complete, grammatically correct sentences are essential in cover letters, but action verbs and results are all you need for the resume. Highlighting important points can be enormously helpful to the busy resume scanner. It isn't necessary to give the important points bullets and bold and underlined and italicized and a large point size - one or two of these is plenty. Little things like this often get overlooked by the resume writer, but can be confusing and stand out as indications of carelessness to the reader.
Italics are the preferred way to indicate titles of publications, but underlines are acceptable.
If you are using a word processing program with a spell check feature, use it. Look up words it doesn't recognize. Look up words you aren't sure of, too - you may be spelling the wrong word right. Punctuation is a horse of a somewhat different color in resume writing. You will still want to use periods at the end of incomplete sentences, but not at the end of short items in a list.