Street photography - street photography are photos that usually contain random incidents in public spaces with the focus normally on people and their behavior - sometimes people may not be present, yet photos can be taken of environments where human activity is evident and can be recorded. 
The photographs don't have to be on the street or in an urban environment, they can be anywhere for example Martin Parr has taken shots on the beach that still come under this category because of the nature of the photos. https://www.martinparr.com/recent-work/
Street photography is almost always candid yet candid photography isn't always street photography.
A candid photograph is when the subject does not pose for the camera.

Is a well known street photographer,Her work is used in order to demonstrate a side of reality that is presented as the minority,so using her camera as a mode of inablment to show these people.

Her work can be descried as old and new,it is a modernization of historic journalism within her work but also a more outrageous twist to which she is accustomed.  Mary Ellen has been photographing on the streets of New York City since before she even lived in New York City—and she continues to.  The energy and variety of New York has always inspired Mary Ellen.  Her work is also seen within experimenting in different modes such as Polaroids or more set up celebrity shoots. Although she only shoots people who have somewhat political power or a message of leadership within their own work.

Before her fame as a photographer, In 1983 Mary Ellen met Tiny, a 13-year-old girl working as a prostitute on the streets of Seattle. This was the inspiration for her book and commentary that inspired her work for a further 30 more years. This demonstrates how her work was based off a story of people and some occasions this could be based upon suffering or a miscarriage of life that she wanted to change by exposing to the world.

Mary Ellen taught photography workshops for over 30 years.she discusses the main topics that she would distill in her workshops using examples of her work and also photographs by some of her students.Her work was always graphic and had a suitable message behind every each piece. Her work shows a continuous  explotment of different people,races and social classes within america at the time. As clearly seen all of her images are real and captured from inspiration within the streets.

to me her work is a clear exaggeration of the issues at the time and how it was important to exploit the minority and the issues living among everyone in new York. To me her work expresses and demonstrates Americas development and need for change within people.Each of her photos exploit a different conceptual concept of people within NYC .

My favorite image is seen below: 

I like this image due to all the possible reasons behind as to why it was taken. this image has an interesting  angle and composition to show a small youthful girl leaning on a masked persons shoulder,perhaps this is done to show how even the innocent are reliant upon masked and faked laws that portray a sense that they are helping and efficient but are nothing but the differ.

Street /Candid Photography

Street/Candid photography is a form of photography in which the subject that is being photographed is unaware that the photo is being taken and the encounter between the subject and the photographer is a chance encounter

Street Photography

Street photography can focus on people and their behavior in public, thereby also record people’s history. This motivation entails having also to navigate or negotiate changing expectations and laws of privacy, security and property. In this respect, the street photographer is similar to social documentary photographers or photojournalists who also work in public places, but with the aim of capturing newsworthy events; any of these photographers’ images may capture people and property visible within or from public places.

Candid Photography

Is a photography captured without creating a posed appearance the candid character of a photo is unrelated to the subject’s knowledge about or consent to the fact that photos are being taken and unrelated to the subject’s permission for further usage and distribution. The crucial factor is the actual absence of posing. However, if the subject is absolutely unaware of being photographed and does not even expect it.

Links About Street Photography

https://world-street.photography/en/

http://mashable.com/2014/02/23/44-beautiful-candid-moments-captured-in-photographs/#4e_lfoGjNaqH

what is street photohgy?

Street photography,  is photography conducted for art or enquiry that features unmediated chance encounters and random incidents within public it is used to focus on street behaviour and how people develop and act whiten their natural environment and daily journey, it has a long history to it being based off of development of time to capture the people with. the city as a way of developing change. what I like about street photography is how very picture tells a story and also presents each person in such a different dynamic.

what is candid photography ?

Although there is a difference between street and candid photography, it is usually subtle with most street photography being candid in nature but not all candid photography being classifiable as street photography. Street photography does not necessitate the presence of a street or even the urban environment  . whereas candid is a photograph captured without creating a posed appearance. This is achieved in many ways .peronsally candid photography  has so much accurate expression of happiness and or any emotion that is real and human that you are bale to couture