We're talking about crystallizing? You're probably right, they probably left it off because it is such a basic standard procedure in chemistry. An analogy would be...were making a cake. The recipe calls for 10 egg whites and 2 yolks. It probably doesn't explain how to separate the eggs.
Use the minimum hot solvent to dissolve the powder/crystals, put it in an evaporating dish and a warm place and don't touch it at all until you just can't help yourself. I've seen some amazing 4mmc crystals like clusters of quartz stones. Masterpieces, but you can't touch it for 6 weeks. Sometimes (often) you'll recrystallize several times, it purifies the product. You shouldn't worry about the crystals the first time if you know you're going to do it 2-3 times, kick up the heat. Evaporate it faster, collect, redissolve, recrystallize. Only the last time you should worry about the size and shape. Recrystallization is covered in every chemistry book in history and hundreds of write ups and tutorials. It's redundant to add it to every synthesis.