How to learn CompTIA Security+ ?

As IT security is valued by more and more companies and even the country, CompTIA Security+ has become the choice of more and more people in career positioning. So, How to learn CompTIA Security+ has become a concern for many people.

Since we have chosen learn CompTIA Security+, then our first step is to understand what CompTIA is. What is CompTIA Security+?

CompTIA is a non-profit IT industry group established in 1982 in Chicago, USA, as required by the IT industry. It has acquired “CompTIA certification” worldwide to assess the practical capabilities and application capabilities of IT, security, cloud and other IT business areas worldwide.
CompTIA certification is the industry’s leading certificate to start and grow your IT career. Whether you rely on CompTIA certification to get your first IT job, or if you are ready to advance your IT career with advanced certifications such as IT security, CompTIA can help. This is how it works.
The official interpretation of CompTIA Security+ is: CompTIA Security+ is a global certification that verifies the basic skills you need to perform core security functions and pursue an IT security career.
CompTIA Security Plus certification is a great place to start, it builds a good foundation and you can use it in almost every aspect of information technology. Many employers agree that Security Plus certification is a good prerequisite for many open positions.

Comptia A+ 
CompTIA Linux+ 
CompTIA Network+ 
CompTIA Project + 
CompTIA Security+