My vote goes to SICP as well, however if you don't have much time http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme.html http://www.ccs.neu.edu/home/dorai

My vote goes to SICP as well, however if you don't have much time http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme.html http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme.html is helpful.