Methods and steps of resume filling:
If you only fill in one degree, then fill in the highest degree.
Education generally includes primary school, junior high school, senior high school/vocational high school/technical school, junior college/undergraduate course, master's degree, doctor's degree, etc. Postdoctoral is not a degree, but a job.
If you need a series of academic qualifications, put them in reverse order.
Generally speaking, education starts from high school or university and goes up. Unless there are special requirements, you need to start writing from primary school, and generally it is enough to start writing from high school or university.
Academic qualifications need to be proved by a diploma or a deputy certificate.
Study tour, audit, short-term training, etc. No diploma or associate degree certificate can not be used as proof of academic qualifications.
Generally, job seekers need to verify their academic qualifications, so they need to have academic qualifications.