Appreciate if someone can suggest a book which details the complete procedure of making a professionally looking PCB, or even a Video which would give a "Clear" idea of how everything is done, Step-by-Step.
You will never get a professional looking PCB made at home without a lot of time and expense, far far far more than it would cost to just get it made by a PCB factory. Small run PCB's are very cheap these days.
You have several items to consider!
1. Resist method. Dry-film negative acting photoresist will give you the most repeatable results and is the closest method to how industry does it.
2. Artwork method. Domestic printers will give you OK results, but not perfect by any means. If you are striving perfection, you need to get the artwork professional printed onto transparencies.
3. Alignment & Registration method for 2 layer boards. This is a lot harder than it sounds, if you are striving perfection you will have to put a lot of thought into how you do this, a LOT of thought. You must use some sort of physical means to do this, just eye-balling it is nowhere near good enough.
4. Etching method. All more or less the same, I like Cupric Chloride these days, google it. I use 35% hydrogen peroxide to "give it a kick back into life", just a capful.
5. Soldermask method. Since you want a professional look, you must have a soldermask. This is also harder and more expensive than it sounds. Some methods include UV cured soldermask bought from ebay (messy to use, hard to get a good result), Dynamask Film (a little expensive, only comes in green), Vitrea 160 Glass Paint (some people report good success, but you have to think of a way to mask the pads).
6. Drilling method. If you want a professional look, you are going to need a drill press, no two ways, hand-drilling you will always mis-drill a hole or two, or drill on a slight angle, and that will make for a very home-made appearance. Because the holes are small you need a very high speed micro drill press not just a big workshop one! Of course preferably you would have a CNC drilling machine!
7. Via method. To do double sided boards as you want, you need vias, how are you going to do those with a "professional look" - really your only two options to meet that criteria are plating, which involves a lot of time, equipment, and complicated setups, or rivets, which are only just one step above home-made appearance.
In short, if you want "a professional looking PCB", pay a professional pcb maker, there are a lot of them, and they don't charge much.
Making a PCB yourself is still a valuable skill, you can design, etch, and assemble a one-off home-made prototype in a couple of days, not weeks while you wait for your prototype boards to come back from the factory only to find that there was an error you missed. But don't kid yourself into thinking you can get a "professional looking board" for cheaper than you can pay the factory to make them, it will cost you many times more!
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