Efficient Address Book Free - Version 5.10.512 Efficient Address Book Free is a professional, elegant and cross-platform contact and customer information management software program. You can sync data across PCs and mobile phones. You can add birthday and anniversaries to a contact and the program will remind you of them on time, so you can better create and keep networking and build customer relationships. By setting importance of your customers, you can always focus on key persons. The product saves you a lot of time by features such as flash find, fast input of contacts from the same company, copy and paste of contacts as well as bulk import. Additionally, there are various unique features such as you can add a photo to a contact and you can edit all the fields of a contact profile, etc. Besides, you have up to 10 interface styles of different tones of color to choose from! Efficient Address Book Free is a must have for people from all walks of life to manage their contact information.