function createBook(comDiv, title, author, isbn) {
    let num = 1
    let div = $(`<div>`)
    div.attr('id', `book${num}`)

    let tit = $(`<p class='title'>${title}</p>`)
    let aut = $(`<p class="author">${author}</p>`)
    let id = $(`<p class="isbn">${isbn}</p>`)

    tit.appendTo(div)
    aut.appendTo(div)
    id.appendTo(div)
    let select = $('<button>')
        .text('Select')
    select.appendTo(div)
    let deselect = $('<button>')
        .text('Deselect')
    deselect.appendTo(div)
    div.appendTo(comDiv);
    select.click(() => {
        div.attr('style', 'border: 2px solid blue')

    })
    deselect.click(() => {
        div.attr('style', 'border: medium none')
    })
}