If there's one transition word that I wish I could wage holy (and, admittedly, self-righteous) jihad against, it's also. As a transition, also is not your friend. It is not here to save you. And using it will only mark you as the noob to writing that you may or may not be.
Before I get too wound up, let me clarify: Today's lesson is especially geared to less-experienced writers, especially high-school and college-level writers, in addition to new teachers of English who're struggling to articulate why they feel queasy when they see a sentence that begins with "Also." Even if you don't fall into one of these categories, keep reading, because I explain a principle about transitions that's helpful for everyone.
What's the problem with also?
There's nothing inherently wrong with the word also. I'm not here to argue that it should never be used, that it's best to avoid it, or any of the other typical, universalizing, overly-generalized dicta that other writing gurus are in the habit of nailing to doorposts. Despite my opening "jihad" metaphor, what I really want is not for us to abolish the word also but to understand that it is a top contender for Weakest and Therefore Most Useless Transition Word and should probably be avoided on those grounds.
What's the difference between transition also and other uses of also?
First, let's clarify that also, as a part of speech, is an adverb, so it's got lots of uses, functionally (rather than grammatically) speaking.
Here's an example of also put to good use:
There are three good paths for walking to the store, but there are also two good paths for biking there.
In this case, "also" modifies the coordinating conjunction, indicating not a contradiction but an addition that is different. "And" could replace "but," but the use of "but" carries with it a functional emphasis on contradiction, and "also" manages to squeeze in some of the additive sense that "and" would have added.
Now, here's an example what I'm calling transition also:
There are many reasons to adopt this policy. Also, several experts have called for similar policy measures to be taken.
What the writer is trying to do here is tie the first sentence to the next one. Sometimes, I see "also" used like this but with a semicolon instead of a period used between the two sentences/independent clauses. Doesn't matter; the problem is still the same: the transition here is weak and vague.
I used to tell my students that also could be used to tie together any two sentences and make it seem as if there's a transition there without there actually being any there there (so to speak). My favorite example of this was:
I went to the store today. Also, the house caught on fire.
Huh? What's the relationship of these two ideas?
See, that's the principle of transitions: they should always clarify what you think the relationship of Idea A is to Idea B. If your transition misses the mark either by being vague or inaccurate, you're not doing your readers any favors. You're suggesting that the path from Idea A is up some stairs and around the corner when in fact the way to Idea B requires crossing a highway and walking six blocks. There's a slight difference between "and" and "but also" and a much bigger difference between "therefore" and "however." It's up to you to help your readers know where they're going in your writing.
Still not sure how also is vague? Try substituting another more-specific transition word in its place. The results reveal just how comically vague also is:
I went to the store today. Therefore, the house caught on fire.
I went to the store today. However, the house caught on fire.
I went to the store today. Alternatively, the house caught on fire.
I went to the store today. Consequently, the house caught on fire.
How can you remediate transition also?
I see transition also all the time in my EFL students' and clients' writing. Whenever I see it, I ask the writer, "What's the relationship between Idea A and Idea B? Why did you put this sentence [or phrase] after the first one?" In the case of my favorite example, it's hard to explain how going to the store is related to the house catching on fire. If there's no way to explain it, I'd tell the writer to reconsider organization: Maybe one of the sentences needs to find a more appropriate place in the paper. If the writer can articulate the reason, then I suggest that we make that reason clearer. Chronology seems to be the most likely reason for putting Idea A (about going to the store) next to Idea B (the house catching on fire), in my example, so I might suggest using "Subsequently" as an alternative to "Also."
So, the next time you find yourself writing "also," especially at the beginning of a sentence, stop to wonder whether you're using it as the glue that ties ideas together (not just in a list or in phrases like "and also" or "but also"). If you are, ask yourself whether there's a more-specific term you could use to express that relationship. Your readers will thank you.