How to do a good job of software pre-sale and pre-sale experience

Qualities that need to be mastered before sale:

http://www.cnblogs.com/locksley/articles/313813.html

 

Pre-sales growth path:

http://blog.csdn.net/timewind/article/details/25285333

 

Aspects of teaching materials:

http://bbs.csdn.net/topics/390346914