Understanding the many genres and forms of photography used nowadays is helpful. On the one hand, it's comforting to know that you aren't passing up excellent photos taken by photographers who specialise in subjects other than what you do. Perhaps more importantly, viewing a variety of photographic genres and techniques may inspire you to experiment with a different sort of photography. Although not all genres are included in this list, it does include many of the more significant ones.

Astrophotography
 

Astrophotography, which includes everything from smartphone photos shot through a telescope to views of deep space acquired by the Hubble, is one of the most challenging forms of photography to master. Two things make it demeaning: First of all, the size and scope of the subjects that are photographed in this manner are sufficient to inspire existential astonishment in nearly everyone. But more importantly, any knowledge gaps will be readily apparent if you don't have strong exposure and post-processing techniques.

Another type of photography known as "astrolandscape" depicts the Milky Way with a portion of Earth in the foreground. Astrolandscape photography is still challenging, but for the most part, it's simpler to master.

Aerial photography 

Taking aerial photos
It's unclear whether aerial photography is merely a subgenre of landscape photography or a distinct genre in and of itself, but high-quality consumer drones have helped aerial photography gain enormous popularity in recent years. Aerial photography also includes high-altitude photographs taken from aircraft and helicopters, as well as photographs where the focus is on a structure that is not a natural landscape.

Air-to-air photography, in which one or more aircraft are used as chase planes to "hunt" and photograph other aircraft in flight, should not be confused with aerial photography, which normally refers only to bird's-eye view photos that focus on landscapes and surface objects. When telephotoing from a high vantage point on buildings, suspended on cables (like Skycam) or on top of extremely tall poles that are either handheld (like monopods and selfie sticks), firmly fixed to the ground (like surveillance cameras and crane shots), or mounted above vehicles, elevated photography can also produce bird's-eye images that closely resemble aerial photography (despite not actually being aerial shots).

Scientific photography is a vast subject that includes everything from astrophotography to extreme magnification microscope photography. Also included in this are certain artificial creations, such as photographs of particle colliders or the space station that occasionally go viral. I hope this kind of photography gets more and more attention in the future since it has the potential to open our eyes to whole new views and alter the way we perceive the world.