wooden type puzzles

we have a couple janod puzzles (the zoo one and the alphabet one) and i really like how thick the wooden pieces are. i feel it's easier for a baby to hold the whole piece compared to a small knob on the traditional peg puzzles. though these pieces are probably too advanced for oliver right now on these wooden type puzzles, they are so much fun to look at and have such nice color schemes...i sort of want all three!