The second issue of The Harvard College Mathematics Review (HCMR) is now available both in print and online here. Submissions are now welcome for the third issue of The HCMR, Vol. 2 No. 1. You are invited to submit expository papers on any topic of undergraduate mathematics, short articles detailing interesting results or problems, and original problems in any mathematical subject. Papers written for courses, tutorials, or fun are welcomed. To be eligible for publication, all submissions of articles, notes, and problems must be received by February 10, 2008. You are also invited to submit solutions to the problems published in the second issue of The HCMR, available here . To be considered for publication, all solution submissions must be received by March 1, 2008. Submissions should be directed to hcmr@hcs.harvard.edu in .pdf format or in hard copy to The Harvard College Mathematics Review Student Organization Center at Hilles Box # 360 59 Shepard Street Cambridge, MA 02138. If you wish to submit a hard copy, please also send an abstract to hcmr@hcs.harvard.edu. TeX formatting is preferred.