What has changed is that the internet no longer teaches crochet in the order that actually builds skill. Video tutorials now dominate, and a beginner can watch someone work a stitch at full speed, rewind, and copy it — which is a genuine improvement over the illustrated books most of us learned from. What has not changed is the underlying constraint: hook, yarn, and tension have to match, and no amount of video fixes a hook that is wrong for the yarn. The Craft Yarn Council standard sizes are still the reference point that makes sense of everything else, and the numbers are worth memorising before you buy anything.
Your first hook should be an H-8, not the set you found in a drawer
A crochet hook size H-8 in the Craft Yarn Council standard system is 5.00 mm, and it is the size most often recommended for learning how to crochet with medium-weight yarn. That recommendation is not arbitrary. Medium-weight yarn — the worsted and aran weights sold in every craft store — is thick enough that you can see the individual loops with your eyes rather than your fingertips, and an H-8 is large enough to slide through those loops without fighting.
The alternative that people reach for is a G-6, which is 4.00 mm. It is a perfectly good hook, commonly used with worsted-weight yarn for basic blankets and hats. But at 4.00 mm with worsted yarn, the fabric comes out denser and the stitches sit closer together. For a first project, that means more resistance on every insertion and less visual separation between stitches — you spend your attention on the mechanics instead of learning the motion.
At the other end, an I-9 is 5.50 mm, frequently used with medium to light bulky yarns to create a looser fabric for baby blankets and beginner hats. A looser fabric is genuinely easier to read. The cost is that the finished object is floppier, and if you are trying to learn stitch definition — the thing that tells you whether you made a double crochet or a half double — a very open fabric hides the structure.
One more size worth knowing before you buy a set: steel crochet hook size 1 is 2.75 mm, defined in the Craft Yarn Council steel hook standards as 2.75 mm and used primarily with crochet thread for detailed work such as lace edgings and doilies. If you have inherited a slim metal hook with a number on it that does not match anything in the craft store, this is probably what it is. It is the wrong tool for learning. Thread is unforgiving, the stitches are tiny, and the hand position is different.
Chaining is the only foundation stitch, and it is harder than it looks
A crochet chain is made by pulling a loop of yarn through the loop already on your hook, repeatedly. That is the entire mechanism. What makes it hard is tension, not technique: most beginners pull each chain tight, and a tight foundation chain is nearly impossible to work into on the next row.
The fix is to chain with the hook shaft, not the hook tip. Slide the new loop up so it sits on the widest part of the shaft before you make the next one. Every chain ends up the same size, and the row you work into it goes smoothly.
Count your chains and then add the turning chains the pattern calls for — they do not count as a stitch in most patterns, and forgetting them is the single most common reason a first project comes out one stitch short on every row.
A magic ring is not the only way to start a circle, and for many beginners it is the wrong one
To crochet a circle, you need a center that will not open up, and there are two ways to get one. The magic ring — also called a magic circle — wraps the yarn into an adjustable loop, you work your first round of stitches into it, then pull the tail to cinch the center closed. It gives a tight, essentially invisible center. The alternative is to chain a small number of stitches, join them into a ring with a slip stitch, and work into the ring.
The magic ring produces a better result. It is also fiddly, the loop collapses while you are working into it, and if you lose the tail you lose the whole start. For a first circle, the chain-and-join method is more forgiving: the center hole is larger, but you can see what you are doing. Once you have made a few circles and know what the first round should feel like, the magic ring becomes easy. Learning it first, before you can read your own stitches, is where people give up.
Half double crochet is the stitch that teaches you where your hook belongs
To half double crochet, you yarn over, insert the hook into the next stitch, yarn over again, pull up a loop — three loops on the hook — then yarn over and pull through all three at once. That is the whole stitch.
What makes it the useful teaching stitch is that last step. In single crochet you pull through two, then two. In double crochet you pull through two, then two, with an extra yarn over at the start. Half double crochet pulls through three at once, and it forces you to notice the difference between the top two loops of the stitch below and the third loop that runs along the back. Working into the third loop — a common variation — gives a different fabric texture, and once you have found it deliberately, you stop accidentally working into it.
Half double crochet also sits taller than single crochet without the looseness of double crochet, which is why it turns up so often in hats and blankets where you want warmth without bulk.
Granny squares and hearts are the same three skills in different arrangements
To crochet a granny square, you work clusters of double crochet stitches separated by chain spaces, turning the work at each corner. The corners are just a chain space worked into a chain space, which is what makes the square grow outward evenly. To crochet a heart, you work a flat shape with increases concentrated on one side to make the lobes and a point at the bottom, usually starting from a ring or a chain.
Both are built from the same inventory: chain, slip stitch, double crochet, and the ability to count. Neither requires a new technique. What they require is that you can look at the row below and identify where a stitch begins and ends — which is exactly the skill that a granny square, with its open structure built from clusters and chain spaces, forces you to develop. A heart is less forgiving of miscounts because it is a solid shape and the error shows in the silhouette.
Changing colors is a technique problem, not a tension problem
To change colors in crochet, you stop partway through the last stitch of the old color and finish that stitch with the new color. Specifically: work the stitch until you have the final yarn over left to complete, drop the old color, yarn over with the new color, and pull through. The new color is now anchored, and the color change happens inside the stitch rather than between stitches, which is why it looks clean.
The part people get wrong is what to do with the old color. Do not cut it at the change unless the pattern says to. Carry it up the side if the next rows are the same color, or leave a tail long enough to weave in later — a few inches, not a stub. Weaving in a tail that is too short is how color changes come undone in the wash.
If you are changing colors in the round, the jog where the round begins and ends is visible no matter how carefully you work it. That is a property of working in a spiral, not a mistake. Turning at the end of each round eliminates the jog and introduces a seam instead. Pick which one bothers you less.
What to buy, and what to skip
- Hook: one H-8 (5.00 mm). Add a G-6 (4.00 mm) and an I-9 (5.50 mm) once you have finished something.
- Yarn: one light-colored, smooth, medium-weight skein. Dark yarn and fuzzy yarn both hide your stitches.
- Skip for now: steel hooks and thread. Size 1 steel is 2.75 mm and belongs to lace work, not to learning.
- Skip for now: the full hook set. You will not use most of it, and buying it before you know what you like means buying it twice.
The trade-off is real: one hook and one yarn limits you to whatever that combination can make. That is the point. A beginner with one hook finishes things. A beginner with a set of twelve spends the first month deciding.