QUOTE(jo.clarinet @ Jul 11 2006, 10:56 AM)

Yes, the 'Recorder from the Beginning' series by John Pitts is good. There's a Trio book as well as the duet and quartet books which have already been mentioned.
Andrew Challinger's Suites (I think he's done three of them now) are very good, and much enjoyed by the children. Several of the pieces have the same rhythm in all parts, which is VERY helpful with relatively inexperienced players!
Then there's Microjazz for Recorder Group, and last - but certainly not least - our very own willobie has also arranged and published some very good pieces for children - you could PM her for more details.
I use the Red Hot Recorder books by Sarah Watts a lot. There's one for descant and one for treble, and although they mostly have one part per piece, there are some duets and trios. The books have different tunes, the treble one isn't simply a transcription. Good CD backing tracks, too, which make even the first pieces for B and A sound good.
My recorder players at a local primary school - 24 divided into 4 groups had their end-of-year assembly today and played several from these books. Lots of applause from staff, children and parents.