Summarize this article in one sentence.
The 55-card edition is designed for up to 4 players and the 84-card edition is designed for up to 6 players. Keep in mind that because the deck will be divided among all the players after the starting word is made, more players means fewer cards in each person's hand. The starting word must have four letters and should be a word that can be made into another 4-letter word by changing one of its letters.  Good starting words include "GAME," which can be turned into "FAME," "LAME," "GATE," or "GAZE," and "WARE," which can be changed into "WERE," "WARM," "WARN," or "WART." Bad starting words include "ECHO" and "EXAM," which cannot readily be turned well-known 4-letter words. Place these cards on your table or playing surface where everyone can see them and reach them. Make sure that they are forming the starting word you have chosen. Leave a bit of space between the cards so that the cards you put on top of these cards will not overlap. You may want to shuffle the cards first to make sure that everyone gets a good mixture of letters. Make sure that everyone has the same number of cards when you are done dealing the cards. Remember, all of the cards should be dealt to players; there should be no cards left in the deck. Remind your fellow players that the cards are two-sided. They are printed with a letter on each side, or with a letter on one side and a blank space on the other. Either side of the card may be played to make a legal word, with the blank serving as a "wild letter" as in the Scrabble board game. Get into the habit of looking at the upper left edge of your cards, rather than flipping them back and forth. At the upper left edge you can see the two letters that the card represents.

Summary:
Decide how many players there will be. Choose the starting word. Draw and place the four cards you need to make the starting word. Deal the remaining cards among all of the players. Make sure everyone understands how the cards work.