As you may know, there are many methods of putting down that book. Omnipresent is one that was popular ages ago and doesn't have much of a place in today's market. So we will not discuss this method. Instead we will discuss the two most popular methods. First Person point of view and Third Person point of view.
More and more books are coming out in first person. What does this mean?
As the writer, you must decide which of your characters you will tell the story through. No other characters thoughts should be expressed except through dialogue with the main character. Since this character is telling your story, the use of 'I' is predominate. That doesn't mean your character doesn't have a name, but we must learn their name through another character.
I pulled the car over clutching the steering wheel with both hands and gasping for a deep breath. Before me, and to the side, ten cars or better had slide on the ice into three semi trucks. Fire engulfed several. I had just missed being the last of the bunch by sheer luck. I grabbed my cell phone and dialed 911. (For those of you not in America, 911 reaches operators to dispatch the police, fire and ambulance personnel.)
As you can see by this example, keep your writing tight, full of tension. The reader will be swept away and find themselves in the same situation as your main character.
Third person point of view allows you, the writer, to give details about the story that your hero or villain is unaware of. This type of writing is just as full of tension and suspense as first person, but the reader is aware of more plot points than with first person.
Melissa clutched her heart. A loud dong sounded from the next room and made her jump. She heard feet shuffling toward her. A shadow crossed the threshold. She dialed 911 on her cell phone without looking at it. Soon a voice answered. "911, What's your emergency?" Before she could breathe, the person to whom the shadow belonged to bolted toward the door.
In this example as in the first, tension is introduced immediately, not back story to explain who your character is or where they are. With practice, you can achieve this kind of tight, tension filled writing too.
Many of you have considered multiple point of view shifts in your story. This is better done with third person. Take care though to use a page break or start a new chapter so your readers don't get confused.
What you should not do:
Do not combine both styles of writing in one book. There are some well known authors who have a long writing history who can get away with doing this. But even they risk confusing their readers so that the readers will put down their books, never finish and never buy another book from the author. Do you want to be a best seller? Why not? We are allowed to dream. If so, avoid this pitfall.
As always, your comments are appreciated.