Short answer: yes.
Longer answer: Anyone who pledges at "The Little Particle That Looked Ahead" (the $22 level) or above can add on extra copies of THE LITTLE PARTICLE THAT COULD for $12 each. You'll be asked how you want to allocate your extra pledge money in the post-funding survey. So, if you want three copies of THE LITTLE PARTICLE THAT COULD, pledge $36, select the $24 "Double the Acceleration" level, and in the post-funding survey (which will be sent out early March), you'll have to specify that the extra money was for an extra book, and not just you being nice.
If you want the History and Physics pack ($80) and an extra copy of THE LITTLE PARTICLE THAT COULD, just pledge $92 and in the post-funding survey you can specify that extra $12 should go towards an additional book.