SAP basics are simply elucidated in this e book. It is very easy to read and very well structured. This e book is very helpful for conducting SAP projects. Also it is a great reference book for experienced Basis Administrators.
Moreover this SAP e book covers topics on Technical Core Competence, Software Logistics (Change and Transport System Prerequisites, Change Management for Customizing, Transport Management, Advanced Management, Client Tools, System Landscape Strategies), R/3 Technical Implementation and Operation Management (Implementation with ASAP, Overall design, Technical Operation, Going Live, Advanced R/3 System Administration, Technical Core Competence- Workplace
I found the following download links and you can make use of it
