This book is a collection of seven articles published in the past decade by the author. These articles are concerned with various issues including possessor raising, null subject, null object, pied-piping in logical form, focus marker, question formation, and adverbial reflexive. Each article has made a contribution to its topic. More importantly, these seven articles, taken as a whole, also constitute a window through which readers may look at the issues from a formal syntactic perspective and get a sense as how works have been conducted in the framework concerned, how arguments have been constructed, and how justifications have been provided in the field.