As a beginner, you will almost certainly be spending a lot of your solve time on the first 2 layers (F2L) so it is worth practising that the most. And looking to see how other people do F2L. Bob's F2L page shows quite a few techniques for all 41 corner-edge cases.
Remember though, if you use the ZZ method then edge orientation is fixed, so only 20 of those cases apply -
corner placed - 02, 07, 09, 11, 13
white on top - 04, 16, 18, 21, 23
green on top - 05, 25, 27, 30, 32
red on top - 06, 34, 36, 39, 41
But be careful because Bob's algorithms on that page do not all maintain edge orientation. The following do not - 02, 30, 39, 41 - and the rest are OK.
For the bad cases I use algorithms from Conrad Rider's site instead -
02 - (L U L U L) (U' L' U' L')
30 - F2 R' D R' D' R2 F2
39 - L U2 L2 U' L2 U' L'
41 - (U2 L' U L U) (L' U' L)
All of which looks complicated... but if you check through all those cases then there are only really 3 cases which are either not intuitive or where the intuitive algorithm is only a couple of turns extra.
These are the only cases that I felt I needed to learn. The 3 with the badly connected pair at the front.
Case 21 - both reds on the front - U2 (L2 U2) (L U L' U L2)
Case 30 - both greens on the top - F2 R' D R' D' R2 F2
Case 39 - opposites on top and front - L U2 L2 U' L2 U' L'
All of these algorithms are short, easy to learn and quite elegant. The rest of F2L just comes with practise, practise, practise.
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