I'm looking for a Japanese grammar book.
The more grammar you learn, the better your writing will become.
My boss looks like a smart person, so it’s too bad that he always makes grammar mistakes.
The method of writing is how you write. You can have vocabulary words, but you have to be able to put them together using some kind of method. This method happens to be grammar.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. The ほう changes to ぽう.