Hangul – ㅂB/P and ㅃ PP
ㅂB/P
This letter ㅂ (bieup) is pronounced like the letter B or P depending on where it falls in a word or syllable. It is related to the previous letter in the Korean alphabet, letter ㅁ (miem). You can remember the sound that it makes because the ㅂlooks like a bed or a bucket.
ㅃ pp
The doubled bieup ㅃ (ssangbieup) is a stronger p sound than a single ㅂ(bieup).
Read through more Hangul Lessons. You can also look at resources to learn to read Hangul.