This is a set of three books: a textbook, a problem book, and a review book. I am selling these because I passed the certification exam. ① AWS Certified Solutions Architect Associate Exam Textbook, Revised 3rd Edition NRI Netcom, Inc. Takuro Sasaki, Shinichiro Hayashi, Hidekazu Konishi, Kei Kanazawa ・I found it efficient to lightly review this textbook 2-3 times and then solve the problems in ②. I also used other reference books and websites, but this book helped me learn the knowledge systematically. It has many illustrations and detailed explanations, making it easy to understand, and I found it very useful. In particular, the main storage and database functions are summarized, which made it easy to organize my knowledge. (When studying based on problems, knowledge can be biased or misunderstood, and information can be scattered, making it difficult to organize on my own.) ・Condition: No writing. It's in good condition. ② AWS Certified Solutions Architect Associate Practice Questions, 2nd Edition ・After gaining some knowledge with ①, I solved the problems in this book. Including the explanations, I researched the services and their functions that appeared, and how they could be used with other functions, taking detailed notes. This method allowed me to study efficiently. Finally, I took the mock exam at the end of the book, and I think you can pass if you score over 80%. ・Condition: No writing. It's in good condition. ③ Overnight AWS Certified Solutions Architect Associate Exam Prep Text →After gaining knowledge from other materials and solving many problems, reading this book helps you understand the points frequently asked in the actual exam, with explanations of each service. The practice questions at the end of the book were also similar to the actual exam, and I found them helpful; some similar questions appeared on the exam. Condition: There are some erased marks from a Frixion pen on pages 42-89. Please check the image 5 for reference. Other than that, it's in good condition. All three books include mock exams or practice questions at the end, so I recommend solving them. I passed the actual exam because some questions were similar to those in these books. If you wish, after purchasing, I can offer some advice, such as what topics to study, so please feel free to contact me. I plan to ship in two Click Post shipments. These are amateur inspections, and used items, so there may be oversights. Please understand and purchase only if you agree.