invest in Accordance: #10) There are several good Bible Study programs on the market, and have been so for many years. Accordance is a newer entry. I believe it's been about ten years now, and its creators learned what the serious Bible student needs, to what the novice will enjoy 9) I've invested heavily in two other products over the years, and I was always "kinda-sorta" happy but never fully satisfied. 8) Customer support was fair to good with those other Bible programs. Accordance support, experientially, has always been very good. 7) Accordance's website for product upgrades is great, and module purchasing includes a serial number. It's fast and easy, but for "unlocking software groups" you need to purchase and have on hand their CDs. Also, many files are too large to download. You may only need one CD for basic entry level, to several for advanced studies, to numerous if you're at a scholar's level. This is due to the Greek and Hebrew language studies, advanced study commentaries, and reference study modules (books). 6) Accordance's module selections play second fiddle to no one. 5) It's coded (written) for several operating platforms, but appears to be heavily invested toward Mac users (this is good and the way it should be:>). 4) Mac os9 is fully supported, and as their leap into osX. 3) Updates to Accordance's heart program is always timely and constantly updated. 2) New modules are constantly being added, and others updated as needed. And the number (1) reason is; Invest in Accordance because it's what Jesus would use to teach you <smile>. This program gets a rare five star rating from me because it's the only Bible study program worth a serious long term investment of your time and money. Manuals are available free in .pdf, but an extra cost for well written paper manuals