Arabic is written right to left and uses a cursive script. Because it is a cursive script, there is no seperate printed form as is used in European languages. Latin letters can be either written cursively or as block letters. Actually the ability to write cursively is declining in the West. This is not so with Arabic.
Two additional points to keep in mind are that there is no capitalization of letters in Arabic and that unlike English, Arabic is a phonetic language meaning the words sound the way they are spelled. Now you know why there are no spelling bees in the Arab world.
The Arabic alphabet consists of 28 letters. These letters may change slightly depending on whether they come at the start of a word, the middle of the word, the end of the word, or by themselves. These differences are noted in the letters below.
When you click on a letter below you will hear the name of the letter. Keep in mind that you are hearing the Arabic name of the letter and not necessarily how it sounds in a word. For instance in English, the letter w is named "double you" but is pronounced as "wa". The actual pronunciation of the Arabic letters is shown in an english example below where the blue highlight indicates the pronunciation of the letter. The letters in green are the transliteration of the letter into English.
When you are comfortable with memorizing the alphabet, it is time to practice what you have learned.