In a standard deck the ranks are usually treated in ascending order from Ace through King, but the exact order depends on the game. A common teaching order is Ace, 2–10, Jack, Queen, King. Many games treat Ace as the highest card, some treat it as the lowest, and a few allow it to be both high and low (for example in certain straights in poker). For suits there is no single official global order, but a common convention – especially in rulebooks, bidding systems and sorting – is Spades, Hearts, Diamonds, Clubs (often remembered as SHDC). Some sources reverse the red suits or put clubs before diamonds, but as a player you rarely need to worry about suit order unless a specific game or tournament rule mentions it. When you design a custom deck of cards the internal order is mostly about convenience: the printer and our production pipeline use a consistent mapping from card index to rank and suit so that your custom faces appear on the correct cards (for example your chosen photo always appears on the King of Hearts, not a random card). CustomFaceCards automatically keeps the card mapping and order correct behind the scenes, so you can focus on the creative side of your custom deck while still ending up with a fully standard, game‑ready deck of cards.