The artwork looks beautiful online, but the cards feel awkward when they arrive. Deck dimensions affect how comfortably you hold, spread and read the cards. A visual preference and a practical fit are separate parts of choosing a deck.
Look for the actual measurements rather than relying on labels such as standard or pocket. Different publishers use different formats. Consider the complete card, including borders, not only the cropped artwork shown in a promotional image.
Make a paper-size comparison
Cut a plain paper rectangle to the listed dimensions and place it in your hand. This does not reproduce the card stock or finish, but it helps you understand the footprint. Lay several rectangles on the surface where you normally use a spread.
If you can examine a sample deck with permission, notice thickness, flexibility and edge feel. Do not bend a display card to test it unless the owner allows that. A large deck may display detail well but require a different handling method.
Check readability at your usual distance
Small lettering and dense artwork can be difficult to inspect across a table. A miniature edition may be convenient to carry while losing details you enjoy studying. Conversely, an oversized edition may occupy more space than a shared table comfortably provides.
Choose a way of mixing and drawing cards that is comfortable for you; elaborate shuffling is not a requirement for a reflective or creative practice. If hand movement is painful or limited, consider accessible handling options and appropriate professional advice rather than forcing a technique.
Check the storage box dimensions as well if the deck will travel. The practical question is whether the whole set fits the way you use it. Artwork can draw you to a deck, while a few measurements help you avoid choosing one that turns every session into a struggle with the cards themselves.