If you want to learn Spanish as a second language the first thing that you must do is learn the Spanish alphabet. Think about it, you learned the English alphabet before you learned anything else about the language, so why shouldn't it work the same way with Spanish? You should make sure that you understand the phonetics of each letter in the alphabet; do not just memorize it by sight. If you understand the Spanish alphabet, you are already one huge step ahead of the game as you have a much greater chance of saying words correctly when you see them for the first time.
Luckily, the Spanish alphabet is much like the English alphabet only with three extra words. These extra words are either accented or extended, and this makes their pronunciation a lot easier. These letters also aid in pronouncing different words because they allow you to comprehend how the word as a whole is supposed to sound.
In fact, the Spanish alphabet is a lot easier than the English alphabet because it is a lot more straightforward. This means that all of the letters sound as they are written, you do not have to decipher between a "long a" and a "short a". There are exceptions that you will need to learn, but these come after you have a basic knowledge of the language.
If you wish to learn how each letter sounds, ask someone who is a native Spanish speaker to say each letter as you point to it. Once you hear the pronunciation it is important that you repeat the letter so you remember each one and how it is pronounced.
You should also know how to look up words in a Spanish dictionary. The words are not listed the same as in an English dictionary. If you are looking up any word that starts with a C in an English dictionary it will be under C, however in a Spanish dictionary if you are looking up a word that starts with Ch it will not be under C, it will be under Ch.
All in all, the easiest way to start learning the Spanish language is to master the alphabet. Once you have the alphabet down, you can start learning the rest of the Spanish language.