Hirai Tarō (平井 太郎), better known by the pseudonym Rampo Edogawa ( 江戸川 乱歩), sometimes romanized as "Ranpo Edogawa", was a Japanese author and critic who played a major role in the development of Japanese mystery fiction.
If you are want to try reading mystery then I think this book is suitable for you. No complicated cases and phrases because Edogawa Ranpo made it easy for us to understand