I just did a full birth chart for myself, as I knew the exact time. After looking into it, it's pretty damn accurate.
First, some basic terms; the birth chart basically maps the key aspects and intersections of the stars when you were born. As such, each planet represents certain values or attributes, and the zodiac signs represent how those attributes are manifested in ones life. The Sun sign is the primary zodiac sign, and it represents the outward sum of your being. To read the birth chart, you will just go through each celestial body, sun, moon, Venus, etc. And for each one you will determine which sign was effecting that body when you were born.
There are 12 signs, each is ruled by a different planet/moon, is considered mutable, fixed or cardinal, and represents a different element.
Here are the general traits of the elements, each element has three signs.
Air signs///// Gemini, libra, aquarius ///// Communicative, intelligent, idealistic
Fire signs ///// Aries, Leo, Saggitarius ///// passionate, impulsive, assertive
Earth signs //// Taurus, Virgo, Capricorn///// pragmatic, reliable, grounded
Water signs ///// Cancer, Scorpio, Pisces//// emotionally intelligent, dreamy, nurturing
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The cardinal, fixed, and mutable modalities represent the signs relationship to work and activity
Cardinal - Aries, Cancer, Libra, Capricorn //// initiates activity and progress, natural leader
Fixed - Taurus, Leo, Scorpio, Aquarius ///// reliable, persistent, stubborn
Mutable - Gemini, Virgo, Sagittarius, Pisces /////, adaptable, spontaneous, dynamic
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Sun - ,////ego, sense of purpose;;;/// in
Libra -cardinal; air sign; ruled by Venus// / - //balance, harmony, & Justice
Moon ////emotions)/// in
Leo - /////fixed; fire sign; ruled by Sun;///// - passionate, loyal, dramatic
Mars ////energy, action, desire//// in
Cancer ///// Cardinal, water sign, ruled by Moon//// loyal, emotional, moody///////
Mercury /// knowledge, communication, thought ////// in
Libra //// Cardinal, Air sign, ruled by Venus; diplomatic, social, indecisive ///
Jupiter //// prosperity, progress, faith//// in
Virgo //// mutable, Earth sign, ruled by mercury; analytical, critical, practical///
Venus //// love, beauty, peace ////// in
Libra ////// Cardinal, Air sign, ruled by Venus; peaceful, fair, cooperative////
Saturn //// focus, precision, goals/// in
Aquarius ///// Fixed, Air sign, ruled by Uranus, Saturn; ---- independent, original, aloof/////
Uranus ---- ///// progressive, rebellious, intuition///// in
Capricorn ---- //// Cardinal, Earth sign , ruled by Saturn //// --stubborn, productive, honest/////
Neptune //// aura, ethereal, instability //// in
Capricorn //// Cardinal, Earth sign , ruled by Saturn //// ---- responsible, pragmatic, good leadership////
Pluto //// transformation, power, karma & fate//// in
Scorpio Fixed, water sign, ruled by Pluto ///// passionate, intense, serious //////
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But yeah, that's at least a solid example of a basic birth chart, for anyone that might be interested in that. I like to go down rabbit holes with it occasionally. There are many other bodies and relationships between signs, bodies, and also houses, these are called aspects, that have a further effect on an individuals personality or destiny.
I have found it to be eerily accurate at times, but take from it what you will.