A little more revision of the basics to help me improve my reading.
Just like the shewa the daghesh has two distinct types which are represented in an identical manner but are important to be able to distinguish.
The dot in the centre of a letter usually means that the letter is doubled (e.g. טּ = טט).
However, in the begadkephath letters (ב ג ד כ פ ת) the same dot is used to show a hard pronunciation rather than a soft one. The complication arises because the begadkephath letters can also be doubled. So when you see a daghesh in a begadkephath letter how do you know if it is forte or lene?
Distinguishing the two
If a begadkephath letter has a daghesh and it is immediately preceded by a vowel, then the daghesh is forte. It is lene if it is preceded by a consonant. If the letter is at the start of a word it is lene, unless the preceding word ended in a vowel.