Humble Books Bundle: Network & Security Certification 2.0 (MCSA, CCENT, CCNA, CompTIA A+ / Security + / Network+, AWS Certified Advanced Networking and more)

https://www.humblebundle.com/books/network-security-certification-2-books

Tier 1 ($1 or more):

• MCSA Windows Server 2016 Study Guide: Exam 70-741
• MCSA Windows Server 2016 Study Guide: Exam 70-742
• MCSA Windows Server 2016 Practice Tests: Exam 70-740, Exam 70-741, Exam 70-742, and Exam 70-743
• CCENT ICND1 Study Guide: Exam 100-105 (Third Edition)

Tier 2 ($8 or more):

• CompTIA A+ Complete Review Guide: Exam Core 1 220-1001 and Exam Core 2 220-1002 (Fourth Edition)
• CompTIA Security+ Review Guide: Exam SY0-501
• CompTIA Network+ Review Guide: Exam N10-007 (Fourth Edition)
• MCSA Windows Server 2016 Study Guide: Exam 70-740

Tier 3 ($15 or more):

• CCNA Routing and Switching Complete Study Guide: Exam 100-105, Exam 200-105, Exam 200-125 (Second Edition)
• AWS Certified SysOps Administrator Official Study Guide: Associate Exam
• AWS Certified Advanced Networking Official Study Guide: Specialty Exam
• Official Google Cloud Certified Associate Cloud Engineer Study Guide
• OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide: Exam 1Z0-809
• OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808
• CompTIA CySA+ Study Guide: Exam CS0-001

Attention: The CCNA gets an overhaul. The last day to test under the current certification program is February 23, 2020.