Adobe Photoshop, or simply Photoshop, is a graphics editing program developed and published by Adobe Systems. It is the current market leader for commercial bitmap and image manipulation software, and is the flagship product of Adobe Systems. It has been described as “an industry standard for graphics professionals.
In this tutorial, some tools and tasks of Photoshop are covered to introduce with beginners.
Before starting reading, open Photoshop in your pc, and then follow the tutorial. All the best :)

Photoshop workspace:

  • menu bar – contains various menu options for Photoshop’s tools.
  • options bar – The options bar sits beneath the menu bar and holds contextualized options for different tools. It also contains the workspace menu, where you can save and load arrangements of palettes.
  • toolbox – By default, the toolbox sits to the left of your Photoshop window, and contains shortcuts to Photoshop tools.
  • palettes – Individual “panes” that hold information or options for working with your file, known as palettes (or panels), float on the right-hand side. Each palette is labeled with a tab, and can be minimized, closed, grouped with other palettes, or dragged in and out of a panel dock. In the example that follows, the Navigator palette contains a thumbnail of the image that allows you to zoom in or out of the image quickly, and to change the part of the image displayed on the screen.
  • document windows – Each open document has its own document window with a status bar along the bottom. The status bar sits to the right of the zoom percentage displayed in the bottom left-hand corner, and displays information that’s specific to the document.

Creating new documents:

Select File->New from Menu Bar, or press Ctrl+N to open a new document. A new dialog box will open where different settings like size can be set. To save file, go to File->Save or press Ctrl+S
Layers in Photoshop:

Layers are most important and useful feature of Photoshop. Layers allow to work with a part of  an image without disturbing rest parts.
Layers can be shown and hide by clicking it’s corresponding eye icon. Layers can be arranged in group from Layer->New->group . Grouped layers behave similar.
Tool box:

  • Marquee tools (M)  – Marquee tools are used to create rectangular or elliptical selections, including selections that are “single row” (one pixel tall, stretching across the entire width of the document) and “single column” (one pixel wide, stretching through the entire height of the document). To make single-row or single-column selections, click with the appropriate tool on the image area where you want to select a row or column.
  • Lasso Tool (L) – Click and drag the Lasso Tool to draw as election area. Releasing the mouse button will close the selection by joining the start and end points with a straight line.
  • Polygonal Lasso Tool (L) – Click at different points to create vertices of a polygonal shape. Close the selection by moving your cursor to the beginning and clicking once, or pressing the Enter key.
  • Magnetic Lasso Tool (L) – If you think you need help with making your selection, try the Magnetic Lasso Tool. Photoshop will attempt to make a “smart” selection by following the edges of contrast and color difference. Click once near the “edge” of an object and follow around it — Photoshop will automatically lay down a path. You can also click as you follow the line to force points to be created on the path. Close the selection by pressing the Enter key or clicking at a point near the beginning of the selection.
  • The Move Tool (V) – moves a selected area or an entire layer. You can invoke the Move Tool temporarily when using most other tools by holding down the Ctrl key (Command key on a Mac).

  • The Crop Tool (C) – Crop tool  is used to trim images. Create a selection using the Crop Tool, then double-click the center of the selection, or press Enter, to crop the image to the size of the selection.

Brush:

The Brush Tool (B) is suitable for soft-edged painting or drawing. Draw strokes by clicking and dragging the mouse over the canvas. You can change the brush size and other settings in the options bar at the top of the window.
Pencil: The Pencil Tool (B) is suitable for hard-edged drawing or painting and has similar options to the Brush Tool for setting its size, opacity, and more. The Pencil Tool is often used for drawing on, and editing individual pixels in, zoomed-in images.
Eraser: The Eraser Tool (E) removes pixels from the canvas. You can choose between Pencil, Brush, or Block mode from the Mode drop-down menu in the options bar.
The document explains few very basic tools and tasks. To first time start with Photoshop, it is a good lesson.
When you are familiar with this basic knowledge, it will be easy to learn advance Photoshop works. Thanks for reading the tutorial. :)

photo credit: http://articles.sitepoint.com