Does anyone know the method of ancient embroidery? Please tell me.

The main artistic features of Suzhou embroidery are neat patterns, exquisite silk, fresh and elegant colors, rich stitches, elegance and elegance, and exquisite embroidery. As far as the needlework of Suzhou embroidery is concerned, it is extremely rich and diverse. * * * There are 43 species in 9 categories, mainly including Qi Zhen, pendulum needle, fixed needle, spreading needle, disorderly needle, needle roller, cutting needle, Ping Jin, dot, punch, knot, net embroidery, ice flower needle, embroidery, telescopic needle, wool-spreading needle and bead-threading needle. For example, the rare birds and animals embroidered with needles are lifelike and lifelike; The flowers embroidered with loose needles are lively and fragrant, with simple smell and beautiful realm; Portraits, landscapes and wool embroidered with random needles are varied in weaving, with strong decorative atmosphere, strong artistic effect and rich folk and national characteristics; The use of embroidery is quiet, elegant and poetic; Chinese character embroidery has antique, simple and profound artistic effect and the characteristics of flatness, uniformity, fineness, density, harmony, luster, uniformity and smoothness in technique. The unique skill of Xiang embroidery is a double-sided different embroidery in the second half of the 20th century. The ingenious design and the change of needle technique are vividly combined, which makes Hunan embroidery technology reach a new height. Embroiderers can embroider different patterns, colors and stitches on the front and back of the same base material, which is a major breakthrough in embroidery technology. For example, in liger's net embroidery, one side is a tiger roaring up the mountain, and the other side is a low-handed lion walking down the mountain at night. When going up and down, the head of the tiger in front turned to the back and became the tail of the lion. The images on both sides are very different and eye-catching. Another example is the Mulan embroidery screen embroidered by Xiang embroidery artists using the traditional methods of mixed needle, plain needle and swimming needle. One side of the embroidery is Mulan dressed in armor and disguised as a man, which vividly embodies the poetry of "Wan Li goes to Rongji" and "cold light and iron clothes"; On the other side of the embroidery, Mulan took off her wartime robe and looked like a daughter. Vividly reappears Mulan's happy situation of "taking hair as the window and the mirror as yellow". Two very different pictures very briefly summarize the touching story of Mulan disguised as a man, joined the army for her father, and returned home in triumph. Poetry and painting are integrated and complement each other. In this embroidered screen, the artist still uses traditional techniques such as mixed stitches, flat stitches, swimming stitches, etc., and deliberately embroiders it with superb skills, which makes the heroic image of Mulan leap above the embroidered screen, which is not only impressive, but also memorable. Therefore, double-sided embroidery makes Xiang embroidery reach a high artistic level, which is also a unique school of Xiang embroidery.