couldn't find where this really fit in so thought I'd ask here. I have about 30 childrens books that my sons have outgrown but are too mature yet for my daughter. any suggestions on how to store them for about a year or two? Also they will be involved in at least one move by truck.

How about storing them in a big plastic tote.  They will be protected from damage and will be all set for the move.

The books that aren't store in my shelves are in a big plastic bin in my closet. 

I stored children books in storage bins for a couple of years after leaving teaching and the books lasted very well including several moves.  The books were laid flat in the boxes and never had an issue :)

My daughter's kid books were stored for years in a cardboard box in my garage and they held up just fine. If you're worried about humidity, I'd take the above suggestions and buy a plastic tote with a lid.

Also if you see those desiccant packages that come in some packaging (except don't use the ones that come with food), place a few in the box as well.  I've heard that uncooked rice in a cheesecloth bag works as well but don't have experience with it myself.

The books should either be sitting in the box as they would on a shelf (which is how they were designed to be sitting), or if as in the case of kids books they are a relatively thin book they can be laid flat.  DO NOT lay them with the spine directly up or down.

thanks everyone. I have them in a plastic tote right now. the moisture packs/rice packs and how to lay them were very helpful hits!

I like the shallow, under-bed totes.  That way, I don't have to pile too many books on top of each other, and it is easier to find a title.

I like the totes uniform in size, so when moving them it's pretty easy.