Spanish and English are cognate languages; that is, many words in Spanish sound and look similar to their English equivalents. Because of these cognate words, and because of the similarity in alphabets, learners of Spanish can often guess the English equivalents of a Spanish word with a high degree of accuracy, and vice versa.

The Spanish writing system is based on the Roman alphabet,though some features are specific to Spanish, like the letter -ñ (as in Español!) , as well as the digraphs -ch, -ll, and -rr, which we traditionally analyze as single letters.

In addition to these peculiarities, a few Spanish words carry a written accent to distinguish homonyms, as in “él”  (definite article “el” vs. subject pronoun “él”).

Thankfully enough, the Spanish alphabet is very similar to English and you will probably have no trouble with is small differences. Do keep in mind though, that missing these marks can lead to some confusion and even change the meaning of your sentence.
For example, “uña” (fingernail)  and “una” ( the article “a”) are distinguished only by the “ñ”, though context can make it apparent which one you are using.

Either way, it is important to keep your eyes open and identify them, and you will be well on your way to becoming an expert in Español!