Regional handwriting variation
Although people in many parts of the world share common alphabets and numeral systems (versions of the Latin writing system are used throughout the Americas, Australia, and much of Europe and Africa; the Arabic numerals are nearly universal), styles of handwritten letterforms vary between individuals, and sometimes also vary systematically between regions. Arabic numerals. The handwritten numerals used in Western countries have two common forms: Aside from these two main forms, other regional variations abound. The numeral 0: Some writers put a diagonal slash through the numeral 0 (zero), a practice that was used on some early , low-resolution computer terminals which displayed a slashed "zero" glyph to distinguish it from the capital letter "O". This practice conflicts with the use of the letter "Ø" in the Danish and Norwegian languages, and the empty set character "∅" used in set theory. Forms that avoid confusion with Danish include: Confusion between the numeral 0 and the letter O can be resolved by using a script letter O (with a loop at the top). The numeral 1: This numeral is sometimes written with a serif at the top extending downward and to the left. People in some parts of  Europe extend this stroke nearly the whole distance to the baseline. It is sometimes written with horizontal serifs at the base; without them it can resemble the shape of the numeral "7", which has a near-vertical stroke without a crossbar, and a shorter horizontal top stroke. This numeral is often written as a plain vertical line without an ear at the top; this form is easily confused with a capital I, a lower-case L, and a vertical bar |. The numeral 2: In the U.S., Germany and Austria, a curly version used to be taught and is still  used by many in handwriting. This two can be confused with a capital script Q, or the letter Z. It appears as ੨. The numeral 3: This numeral is sometimes written with a flat top, similar to the character Ʒ (ezh). This form is sometimes used to prevent people from fraudulently changing a three into an eight (but introduces the potential for confusion with ezh or with cursive Z). It is often written with a combination of two reversed or turned small letter "c"-like curves, similar to the Cyrillic character З (ze) or a reversed or turned Latin letter epsilon  (ɛ), without the flat top. The numeral 4: Some people leave the top "open": all the lines are either vertical or horizontal, as in a seven-segment display. This makes it easier to distinguish from the numeral "9". Whether the horizontal bar terminates at or crosses the right vertical bar is insignificant in the West, but to be distinguished from certain Chinese characters (particularly 丩), it must cross. The numeral 5: In Taiwan, the left vertical bar is extended upwards as a long stem. If this is slanted, the overall figure may more closely resemble an uppercase "Y". If casually  written it can be confused with the letter S. The numeral 6: Can be confused with a letter capital "G", or the lowercase "b", or the nine if inverted. In situations where the number 6 may appear at various angles (such as on billiard balls, some styles of playing cards and dice), it can be underlined (appearing as "6") or followed by a full stop (appearing as "6.") to indicate the proper viewing angle to disambiguate between "6" and "9"; a "9" may or may not appear with similar underlining or full stop (as "9" or "9."). It can also  be written with a straight line rather than a curly line on top, appearing as "b". The numeral 7: The traditional form found in copperplate penmanship begins with a serif at the upper left and has a wavy horizontal stroke (like a swash). In East Asian countries (Korea, China and Japan), this numeral is commonly written with such a serif, but no swash and no crossbar through the middle. It is usually written with just two strokes, the top horizontal and the (usually angled) vertical. A short horizontal bar is sometimes used to cross the vertical in the middle, to  distinguish the seven from a numeral one, especially in cultures (such as French) that write "1" with a very long upstroke. This form is used commonly throughout continental Europe, parts of the United States and frequently in Australia. In Taiwan two horizontal bars are sometimes used, although an extra-long serif is the feature which most clearly distinguishes "7" from "1". When the cross is added in the center it can cause confusion with a script capital "F". The numeral 8: Some people write this numeral like two circles. Other people write this numeral in one continuous motion, which makes  it look like two tear drops or a sideways lemniscate. The numeral 9: In parts of Europe, this numeral is written with the vertical ending in a hook at the bottom. This version resembles how the lowercase codice_1 is commonly written (). Elsewhere the usual shape is to draw the vertical straight to the baseline. A nine may or may not appear with underlining or full stop (as "9" or "9.") in order to avoid confusion with "6". In China, southern Taiwan, and South Korea, the nine is sometimes written with the loop to the left of the stick, resembling a  lowercase "q" with the loop on the cap line. The Latin writing system. The lowercase letter a: This letter is often handwritten as the single-storey "ɑ" (a circle and a vertical line adjacent to the right of the circle) instead of the double-storey "a" found in many fonts. (See: A#Typographic variants) The lowercase letter g: In Polish, this letter is often rendered with a straight descender without a hook or loop. This effectively means that a handwritten g looks much like a q in other writing traditions. The letter q, which is only used in foreign words and  is extremely rare, is then disambiguated from g by adding a serif (often undulated) extending to the right from the bottom tip of the descender. The lowercase letter p: The French way of writing this character has a half-way ascender as the vertical extension of the descender, which also does not complete the bowl at the bottom. In early Finnish writing, the curve to the bottom was omitted, thus the resulting letter resembled an "n" with a descender (like ꞃ). The lowercase letter q: In block letters, some Europeans like to cross the descender to prevent confusion with the  numeral "9", which also can be written with a straight stem. In North America the descender often ends with a hook curving up to the right (). In Polish, the lowercase q is disambiguated from "g" by a serif extending from the bottom tip of the descender to the right. The lowercase letter s: See long s. The lowercase letter t: In block letters, t is often written with straight mark without the hook bottom. In modern cursive, the descender often ends with a hook to the right. The lowercase letters u and v: These letters have a common origin and  were once written according to the location in the word rather than the sound. The v came first; the u originally had a loop extending to the left and was only used to start words. All other locations for either u or v were written with the latter. In Germany (especially southern Germany), Austria and Switzerland, lowercase u is often written with a horizontal stroke or swish over it ("ŭ", "ū", "ũ"), to distinguish it from n. (cf. German orthography#handwritten umlauts) The uppercase letter I: This letter is often written with one stroke on the top of the letter and  one on the bottom. This distinguishes it from the lowercase letter l, and the numeral 1, which is often written as a straight line without the ear. The uppercase letter J: In Germany, this letter is often written with a long stroke to the left at the top. This is to distinguish it from the capital letter "I". The uppercase letter S: In Japan, this letter is often written with a single serif added to the end of the stroke. The uppercase letter Z: This letter is usually written with three strokes. In parts of Europe such as Italy, Germany  and Spain, it is commonly written with a short horizontal crossbar added through the middle. This version is sometimes preferred in mathematics to help distinguish it from the numeral "2". In Polish, the character Ƶ is used as an allographic variant of the letter Ż. In Japan it is often written with a short diagonal crossbar through the middle (). In France, it is often written with a loop at the bottom. The lowercase letter z: In the cursive style used in the United States and most Australian states (excluding South Australia), this letter is written as an ezh (ʒ). and  script. German and its modernized 20th-century school version , the form of handwriting taught in schools and generally used in Germany and Austria until it was banned by the Nazis in 1941, was very different from that used in other European countries. However, it was generally only used for German words. Any foreign words included in the text would usually be written in the "normal" script, which was called the (Latin script) in German. Slant. Slant is the predominant angle of the downward stroke in handwriting based on Latin script. The slant of a sample of writing is a feature  of many regional handwriting variations, and also a reflection of the copybook that is taught.