Recruitment entails the application of a set of tecnics and procedures that is aimed to atract the attention of skilled applicants. The more commum method of recruitment is the publication of an email to receive CVs from people who want to apply for the job oppening.
The selection, on the other hand, has a more definit goal, which is the hiring of a proffessional for the job that is open. It is a step after the recruitment. After attract several applicants.