Anyone can suggest which is good book which will helpful to troubleshoot the vmware issues
1. Command line
2. Understanding the log files - ESXi Host
3. Performance Issues
In my experience I found community and blogs are quite helpful...lot of administrator guide are available.
http://pubs.vmware.com/vsphere-55/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-55-trouble... -- This is the official vmware troubleshooting guide for 5.5