Good communication is as stimulating as black coffee, and just as hard to sleep after

Effective business must succeed in all its aspects in order to both correspond to the newest market trends, and satisfy customers’ demands. communication can be :
Internal communication - between management and employees
External communication - between the company’s staff and clients, suppliers, vendors
The Importance of Effective Communication for Organizational Performance
Lack of effective communication may lead to:
Misunderstandings
Lack of information
Decrease in employee’s performance
Decrease in company’s turnover
Ineffective or poor communication is frustrating for employees, and becomes a source of a conflict.
If a manager is able to communicate their ideas clearly, so that employees definitely know what is asked of them, the subordinates will, consequently, perform their jobs correspondingly. On contrast, an aggressive way of managing reports results in employees’ getting more and more frustrated, often guessing what their real faults were.
Effective communication in the workplace provides employees with a clear understanding of what is demanded from them, with knowledge of what to do and what to expect. For organizations, such a communication style creates effective performance of the staff, and, consequently, increases customer loyalty and profit.
Feedback mechanisms and sharing best practices internally should be an integral part of organizational performance, and performance management system in particular.
People have different comfort zones regarding their personal space, inquiries about their personal lives, and their personal property that deserve your respect.
The currency of most relationships is based on whether your "word is your bond." In other words, be trustworthy.
Some people you work with are social animals that enjoy the banter and casual conversation that goes on in every office. When they get antsy or start glancing at their watches, move on and let them get back to work.
Many of us talk more than we listen. Practice active listening and learn to process what is said and unsaid in order to improve the quality of your communication in the work place. Ramp-up your listening and processing skills with these colleagues so that they know their thoughts and feelings are appreciated and accepted.
Those who talk about others will talk about you, too. When you or others are being damned by faint praise, or falsehoods about you are being spread like wildfire, you will want a colleague with the backbone to nip that gossip in the bud. That means you have to walk away from gossip when you encounter it, in spite of how appealing it may be.
Find out whether a colleague prefers to hit the ground running or ease into the morning slowly. Ask your co-workers in the next office whether they prefer a phone call, an email, or a face-to-face visit if you have a quick question in the middle of the day. Then, demonstrate that you respect their preferences by acting on them.
Listen to what your gut is telling you about your work place relationships. If anything in your communication with a colleague feels out of order, check to see how you can iron it out in order to get back on track with each other. Addressing miscues and miscommunications in your work place relationships when they first occur is much easier than waiting until the problem escalates into open hostilities. Effective communication in the work place is vital to improving personal productivity and attaining a high quality-of-life-at work.
Avoid a monotone. Use dynamics. Your pitch should raise and lower. Your volume should be soft and loud. Listen to your local TV news anchor; take notes.
People will judge your competency through your vocabulary. If you aren’t sure how to say a word, don’t use it.
Make your whole body talk. Use smaller gestures for individuals and small groups. The gestures should get larger as the group that one is addressing increases in size.
Make your words, gestures, facial expressions, tone, and message match. If you have to deliver a negative message, make your words, facial expressions, and tone match the message.
Blaming others when things go wrong gives us the illusion of control. On the other hand, if we assume too much personal responsibility, the load gets unbearably heavy.
Upward communication will keeps manager informed about employee’s job satisfaction, & feelings for their peers and about organization. Downward communication is important so that manager can give job instructions, explain the roles and policies and explain the issues which need immediate attention. Communication at workplace should be clear, concise and specific. There should be effective use of body language at workplace. Body language reflects the position of a person in the organization. A manager should make effective use of his body language while communicating with his subordinates.
Effective workplace communication is very essential for smooth and efficient functioning of an organization.